Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications

Abstract

The ultimate fate of the universe, infinite expansion or a big crunch, can be determined by measuring the redshifts, apparent brightnesses, and intrinsic luminosities of very distant supernovae. Recent developments have provided tools that make such a program practicable: (1) Studies of relatively nearby Type Ia supernovae (SNe Ia) have shown that their intrinsic luminosities can be accurately determined; (2) New research techniques have made it possible to schedule the discovery and follow-up observations of distant supernovae, producing well over 50 very distant (z = 0.3 -- 0.7) SNe Ia to date. These distant supernovae provide a record of changes in the expansion rate over the past several billion years. By making precise measurements of supernovae at still greater distances, and thus extending this expansion history back far enough in time, we can distinguish the slowing caused by the gravitational attraction of the universe's mass density Omega_M from the effect of a possibly inflationary pressure caused by a cosmological constant Lambda. We report here the first such measurements, with our discovery of a Type Ia supernova (SN 1997ap) at z = 0.83. Measurements at the Keck II 10-m telescope make this the most distant spectroscopically confirmed supernova. Over two months of photometry of SN 1997ap with the Hubble Space Telescope and ground-based telescopes, when combined with previous measurements of nearer SNe Ia, suggests that we may live in a low mass-density universe. Further supernovae at comparable distances are currently scheduled for ground and space-based observations.

12 pages and 4 figures (figure 4 is repeated in color and black and white) Nature, scheduled for publication in the 1 January, 1998 issue. Also available at http://www-supernova.lbl.gov

References in corpus (8)

• Measurements of the Cosmological Parameters Omega and Lambda from the First 7 Supernovae at z >= 0.35
• The Absolute Luminosities of the Calan/Tololo Type Ia Supernovae
• Evidence for a Spectroscopic Sequence Among SNe Ia
• Using SN Ia Light Curve Shapes to Measure The Hubble Constant
• Feasibility of Measuring the Cosmological Constant Lambda and Mass Density Omega using Type Ia Supernovae
• A Generalized $K$ correction for Type Ia Supernovae: Comparing R-band Photometry Beyond z=0.2 with B, V, and R-band Nearby Photometry
• Time Dilation in the Light Curve of the Distant Type Ia Supernovae SN 1995K
• Time Dilation from Spectral Feature Age Measurements of Type Ia Supernovae

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• Bulk viscous embedded hybrid dark energy models
• Tests of Fundamental Quantum Mechanics and Dark Interactions with Low Energy Neutrons -- Extended Version
• The effect of baryons in the cosmological lensing PDFs
• Quintessential inflation: A tale of emergent and broken symmetries
• Hidden past of dark energy cosmological models
• Brans-Dicke theory: Jordan vs Einstein Frame
• Dilatonic Interpretation of the Quintessence?
• Pulsating reverse detonation models of Type Ia supernovae. I: Detonation ignition
• The effect of Dark Matter and Dark Energy interactions on the peculiar velocity field and the kinetic Sunyaev-Zel'dovich effect
• Accelerating dark energy models with anisotropic fluid in Bianchi type-$V{I}_0$ space-time
• Type Ia Supernovae and Cosmology
• Spherically symmetric vacuum solutions of modified gravity theory in higher dimensions
• On Wormholes supported by phantom energy
• Cosmological Solutions of Supergravity in Singular Spaces
• Thermodynamics and Phase Transition of Spherically Symmetric Black Hole in de Sitter Space from Rényi Statistics
• New "Bigs" in cosmology
• Observational Constraints on Cardassian Expansion
• The Path Integral Quantization corresponding to the Deformed Heisenberg Algebra
• Spectroscopic confirmation of high-redshift supernovae with the ESO VLT
• On the Stability of Jordan-Brans-Dicke Static Universe
• On the Vilkovisky-DeWitt approach and renormalization group in effective quantum gravity
• Global and Local Effects of Rotation: Observational Aspects
• Linear Coasting in Cosmology and SNe Ia
• Localization of Gravity on Brane Embedded in $Ad{S}_5$ and $d{S}_5$
• Testing the DGP model with ESSENCE
• Galaxy Clusters: Oblate or Prolate?
• Spectroscopic Observations and Analysis of the Unusual Type Ia SN 1999ac
• Measuring Baryon Acoustic Oscillations from the clustering of voids
• Thermodynamical aspects of Bianchi type-I Universe in quadratic form of $f\left(Q\right)$ gravity and observational constraints
• Superstring-inspired supergravity as the universal source of inflation and quintessence
• An Axially Symmetric Transitioning models with Observational Constraints
• Quintessence in a Brane World
• Toward a Unified Description of Dark Energy and Dark Matter from the Abnormally Weighting Energy Hypothesis
• Luminosity Density of Galaxies and Cosmic Star Formation Rate from Lambda-CDM Hydrodynamical Simulations
• Notes on teleparallel cosmology with nonminimally coupled scalar field
• Scalar and tensor gravitational waves
• Bianchi Type-I Cosmological Models with Variable G and 4Λ$-Terms in General Relativity
• Tolman-Oppenheimer-Volkoff Equations in Modified Gauss-Bonnet Gravity
• A First Glimpse of String Theory in the Sky?
• Stationary Configurations Imply Shift Symmetry: No Bondi Accretion for Quintessence / k-Essence
• The Integrated Sachs-Wolfe Effect in Interacting Dark Energy Models
• Modified holographic Ricci dark energy coupled to interacting dark matter and a non interacting baryonic component
• Nucleosynthesis in Power-Law Cosmologies
• Transitioning Universe with hybrid scalar field in Bianchi I space-time
• Stability analysis of anisotropic Bianchi type-I cosmological model in teleparallel gravity
• Holographic dark energy in Gauss-Bonnet gravity with Granda-Oliveros cut-off
• Cosmology with Gravitational Wave/Fast Radio Burst Associations
• Astronomical Distance Determination in the Space Age. Secondary distance indicators
• Probing Dark Energy in The scope of Bianchi type I Spacetime
• A Test of Cosmological Models using high-z Measurements of H(z)
• Higher derivative corrections of $f(R)$ gravity with varying equation of state in the case of variable $G$ and $\Lambda$
• Stability of FRW Cosmology with Generalized Chaplygin Gas
• Bulk Viscous LRS Biachi-I Universe with variable $G$ and decaying $\Lambda$
• The BINGO telescope: a new instrument exploring the new 21-cm cosmology window
• Can the Stephani model be an alternative to FRW accelerating models?
• On exact solutions for quintessential (inflationary) cosmological models with exponential potentials
• Phantom Energy Accretion by Stringy Charged Black Hole
• Shedding Light on Dark Matter at Colliders
• Astrophysical Constraints on Modifying Gravity at Large Distances
• Scaling solutions from interacting fluids
• Brane Quintessence
• Susskind's Challenge to the Hartle-Hawking No-Boundary Proposal and Possible Resolutions
• Observational Constraints on Accelerating Brane Cosmology with Exchange between the Bulk and Brane
• Corrections for gravitational lensing of supernovae: better than average?
• Determining the equation of state of dark energy from angular size of compact radio sources and X-ray gas mass fraction of galaxy clusters
• Dynamical Evolution of Interacting Modified Chaplygin Gas
• Mild bounds on bigravity from primordial gravitational waves
• The running-mass inflation model and WMAP
• Primordial Neutrinos, Cosmological Perturbations in Interacting Dark-Energy Model: CMB and LSS
• Scalar perturbations in $f(T)$ gravity using the $1+3$ covariant approach
• Statistical approaches on the apparent horizon entropy and the generalized second law of thermodynamics
• Cosmic relic abundance and f(R) gravity
• Generalized Second Law of Thermodynamic in Modified Teleparallel Theory
• Dark energy from scalar field with Gauss Bonnet and non-minimal kinetic coupling
• Extended Born-Infeld Dynamics and Cosmology
• The accelerated expansion of the Universe as a quantum cosmological effect
• The angular size - redshift relation in power-law cosmologies
• Unification of Dark Matter - Dark Energy in Generalized Galileon Theories
• Non-linear perturbations in scalar-tensor cosmologies
• Scalar field mass in generalized gravity
• Strongly Lensed Gravitational Waves and Electromagnetic Signals as Powerful Cosmic Rulers
• Dynamical instability of fluid spheres in the presence of a cosmological constant
• Observational Constraints of Modified Chaplygin Gas in Loop Quantum Cosmology
• Observational constraints on Yukawa cosmology and connection with black hole shadows
• Two-fluid atmosphere from decelerating to accelerating FRW dark energy models
• The Gravitational-Wave contribution to the CMB anisotropies
• Supernova rates from the SUDARE VST-Omegacam search II. Rates in a galaxy sample
• The w = -1 crossing of the quintom model with slowly-varying potentials
• Do We Have Evidence for New Physics in the Sky?
• No evidence for modifications of gravity from galaxy motions on cosmological scales
• Recombining WMAP: constraints on ionizing and resonance radiation at recombination
• A Model for Dark Energy decay
• The generality of inflation in closed cosmological models with some quintessence potentials
• Phantom Accretion onto the Schwarzschild de-Sitter Black Hole
• Power-law solution for homogeneous and isotropic universe in $f(R,T)$ gravity
• Position and frequency shifts induced by massive modes of the gravitational wave background in alternative gravity
• Big Rip and Little Rip solutions in scalar model with kinetic and Gauss Bonnet couplings
• Nonlinear Electrodynamics in $f(T)$ Gravity and Generalized Second Law of Thermodynamics
• Dark energy, gravitation and supernovae
• Revisiting f(R) gravity models that reproduce $\Lambda$CDM expansion
• Induced cosmological constant and other features of asymmetric brane embedding
• On the viability of quintessential inflationary models from observational data
• Construction of 3D wormhole supported by phantom energy
• Geodesic Deviation Equation in $f(R,T)$ Gravity
• Thermodynamic constraints on a varying cosmological-constant-like term from the holographic equipartition law with a power-law corrected entropy
• On coincidence problem and attractor solutions in ELKO dark energy model
• Vaidya Spacetime in Massive Gravity's Rainbow
• Does the Fine Structure Constant Really Vary in Time?
• Clustering, Angular Size and Dark Energy
• Magnetized Bianchi Type $V{I}_0$ Barotropic Massive String Universe with Decaying Vacuum Energy Density $\Lambda$
• Two Fluid Scenario in Bianchi Type-I Universe
• Generalized thermodynamic constraints on holographic-principle-based cosmological scenarios
• Brans-Dicke cosmology with a scalar field potential
• Phantom energy accretion onto a black hole in Horava Lifshitz gravity
• Dark Energy in a Hyperbolic Universe
• Polytropic dark matter flows illuminate dark energy and accelerated expansion
• Late time Acceleration and Role of Skewness in Anisotropic models
• Cosmological entropy and generalized second law of thermodynamics in $F(R,G)$ theory of gravity
• Reconstructing the potentials for the quintessence and tachyon dark energy, from the holographic principle
• Mass varying neutrinos, symmetry breaking, and cosmic acceleration
• The Subaru/XMM-Newton Deep Survey (SXDS) - V. Optically Faint Variable Object Survey
• Gravitational collapse in asymptotically Anti-de Sitter/de Sitter backgrounds
• Constraining the Schwarzschild-de Sitter Solution in Models of Modified Gravity
• Extended quintessence, inflation, and stable de Sitter spaces
• Naked Singularity Formation In f(R) Gravity
• Connecting Infrared Surface Brightness Fluctuation Distances to Type Ia Supernova Hosts: Testing the Top Rung of the Distance Ladder
• A Weyl-Dirac Cosmological Model with DM and DE
• Cosmological models with a Hybrid Scale Factor
• WMAP constraints on Cardassian model
• On Brane Cosmology and Naked Singularities
• Genesis of Dark Energy: Dark Energy as Consequence of Release and Two-stage Tracking Cosmological Nuclear Energy
• Imprints of Chameleon f(R) Gravity on Galaxy Rotation Curves
• Dark matter haloes in modified gravity and dark energy: interaction rate, small-, and large-scale alignment
• The High-z Quasar Hubble Diagram
• The Reconstruction of Constant Jerk Parameter with $f(R,T)$ Gravity
• Modified Chaplygin Gas Cosmology with Bulk Viscosity
• Dark Energy from Gauss-Bonnet and non-minimal couplings
• General relativistic analysis of peculiar velocities
• Galactic rotation curves and brane world models
• Quantum Corrections in Quintessence Models
• Curvature Singularities from Gravitational Contraction in f(R) Gravity
• Constraints on Models for TeV Gamma Rays from Gamma-Ray Bursts
• Observational Tests of Gauss-Bonnet Like Dark Energy Model
• Tall tales from de Sitter space II: Field theory dualities
• Cosmographic analysis of a closed bouncing universe with the varying cosmological constant in $f(R,T)$ gravity
• Non-chaotic dynamics in general-relativistic and scalar-tensor cosmology
• Sky Surveys
• Type Ia SN 2019ein: New Insights into the Similarities and diversities among High-Velocity SNe Ia
• Stability of accelerating cosmology in two scalar-tensor theory: Little Rip versus de Sitter
• Statistical Understanding of Quark and Lepton Masses in Gaussian Landscapes
• Disappearing Dark Matter in Brane World Cosmology: New Limits on Noncompact Extra Dimensions
• Breakdown of the initial value formulation of scalar-tensor gravity and its physical meaning
• Cosmological Tests Using the Angular Size of Galaxy Clusters
• Composition of Low Redshift Halo Gas
• Impact of a locally measured H_0 on the interpretation of cosmic chronometer data
• Cosmic microwave background radiation temperature in a dissipative universe
• Brane universes tested against astronomical data
• Variable Chaplygin Gas: Constraints from CMBR and SNe Ia
• Brane universes tested by supernovae
• Causal Bulk Viscous Dissipative Isotropic Cosmologies with Variable Gravitational and Cosmological Constants
• Self-accelerating solutions in the cascading DGP braneworld
• Sensitivity of wide band detectors to quintessential gravitons
• Photon Spectrum Produced by the Late Decay of a Cosmic Neutrino Background
• Cosmological constant dominated transit universe from early deceleration to current acceleration phase in Bianchi-V space-time
• On the equivalence of Lambda(t) and gravitationally induced particle production cosmologies
• Global cluster morphology and its evolution: X-ray data vs CDM, LCDM and mixed models
• R^n gravity and the chameleon
• Some FRW Models of Accelerating Universe with Dark Energy
• Mirror World and Superstring-Inspired Hidden Sector of the Universe, Dark Matter and Dark Energy
• Bianchi Type-II String Cosmological Models in Normal Gauge for Lyra's Manifold with Constant Deceleration Parameter
• Unified Dark Fluid and Cosmic Transit Models in Brans-Dicke Theory
• Dark matter, and its darkness
• Quintessence with two energy scales
• Interacting Two-Fluid Viscous Dark Energy Models In Non-Flat Universe
• Infinity in string cosmology: A review through open problems
• Phantom cosmology as a simple model with dynamical complexity
• The Phase-space analysis of scalar fields with non-minimally derivative coupling
• Next generation design and prospects for CANNEX
• Accelerated Expansion of the Universe based on Emergence of Space and Thermodynamics of the Horizon
• SNLS data are consistent with acceleration at z=3
• New self-consistent effective one-body theory for spinless binaries based on the post-Minkowskian approximation
• Cosmology of non-minimal derivative coupling to gravity in Palatini formalism and its chaotic inflation
• Slow-roll inflation and CMB anisotropy data
• Cosmological model with macroscopic spin fluid
• Testing generalized logotropic models with cosmic growth
• Investigating the accelerated expansion of the Universe through updated constraints on viable $f(R)$ models within the metric formalism
• Stable accelerating universe with no hair
• New holographic dark energy model with non-linear interaction
• Palatini f(R) gravity as a fixed point
• On astrophysical bounds of the cosmological constant
• Simple Dynamics on the Brane
• Fitting BOOMERANG and MAXIMA-1 data with a Einstein-Yang-Mills Cosmological Model
• The Cosmological Constant, False Vacua, and Axions
• Accelerating Dark Energy Cosmological Model in Two Fluid with Hybrid Scale Factor
• Archimedean-type force in a cosmic dark fluid: III. Big Rip, Little Rip and Cyclic solutions
• A one-parameter formula for testing slow-roll dark energy: observational prospects
• Dark matter signatures of black holes with Yukawa potential
• FRW Cosmology From Five Dimensional Vacuum Brans-Dicke Theory
• Stochastic Quintessence
• Self-consistent Effective-one-body theory for spinless binaries based on post-Minkowskian approximation I: Hamiltonian and decoupled equation for ${\psi }_4^B$
• Compatibility between the scalar field models of tachyon, $k$-essence and quintessence in $f(R,T)$ gravity
• Cosmological Consequences of New Dark Energy Models in Einstein-Aether Gravity
• Neutron Star Structure in the Presence of Nonminimally Coupled Scalar Fields
• Notes on interacting holographic dark energy model in a closed universe
• Constraints on the dark matter and dark energy interactions from weak lensing bispectrum tomography
• Cylindrical solutions in Mimetic gravity
• The Accelerating Universe
• On thermodynamics second law in the modified Gauss Bonnet gravity
• Constraining the Dark Universe
• The first constraint from SDSS galaxy-galaxy weak lensing measurements on interacting dark energy models
• Clifton's spherical solution in f(R) vacuo harbours a naked singularity
• Inhomogeneous Perfect Fluid Universe with Electromagnetic Field in Lyra Geometry
• Noether gauge symmetry for the Bianchi type I model in f(T) gravity
• IR finite graviton propagators in de Sitter spacetime
• Dark Energy: The Shadowy Reflection of Dark Matter?
• Estimation of Cosmological Parameters, Stability Analysis and Energy Conditions in Viable Modified Gravity
• A Lemaitre-Tolman-Bondi cosmological wormhole
• Quintessential power-law cosmology: dark energy equation of state
• Deflationary cosmology: constraints from angular size and ages of globular clusters
• Archimedean-type force in a cosmic dark fluid: I. Exact solutions for the late-time accelerated expansion
• Scalar field cosmology in phase space
• Self-consistent effective-one-body theory for spinning binaries based on post-Minkowskian approximation
• Noether Symmetries of Some Homogeneous Universe Models in Curvature Corrected Scalar-Tensor Gravity
• Onset of acceleration in a Universe initially filled by dark and baryonic matters in nonminimally coupled teleparallel model
• Testing $f(R)$ dark energy model with the large scale structure
• The New Cosmos
• Living with Lambda
• Implications of Cosmic Repulsion for Gravitational Theory
• Investigating Dark Energy Equation of State With High Redshift Hubble Diagram
• Thermodynamics of Spinor Quintom
• Testing Cosmological Models with Type Ic Super Luminous Supernovae
• Particle-Like Description in Quintessential Cosmology
• Cosmological Constant, Conical Defect and Classical Tests of General Relativity
• A new shape function for wormholes in $f(R)$ gravity and General Relativity
• Future dynamics in f(R) theories
• Energy density in general relativity: a possible role for cosmological constant
• Kick it like DESI: PNGB quintessence with a dynamically generated initial velocity
• Asymptotic behavior of w in general quintom model
• Constraining the dark energy and smoothness-parameter with supernovae
• Cosmological dynamics of gravitating hadron matter
• Spinodal Instabilities and the Dark Energy Problem
• Higher-Order Gauss-Bonnet Cosmology
• Cosmological Acceleration Through Transition to Constant Scalar Curvature
• Analytic solutions for the $\Lambda$-FRW Model
• An analysis of cosmological perturbations in hydrodynamical and field representations
• Quantum corrected thermodynamics of nonlinearly charged BTZ black holes in massive gravity's rainbow
• Realistic Cyclic Magnetic Universe
• Is Cosmology Solved?
• Acceleration of the Universe
• Study of Inflationary Generalized Cosmic Chaplygin Gas for Standard and Tachyon Scalar Fields
• Black Hole Formation with an Interacting Vacuum Energy Density
• Self-interacting holographic dark energy
• $w_d=-1$ in interacting quintessence model
• An Upper Limit on Omega_matter Using Lensed Arcs
• Bianchi type-I Barrow holographic dark energy model in symmetric teleparallel gravity
• A longitudinal gauge degree of freedom and the Pais Uhlenbeck field
• A search for previously unrecognised metal-poor subdwarfs in the Hipparcos astrometric catalogue
• Dark energy and supermassive black holes
• Quantum field theory with and without conical singularities: Black holes with cosmological constant and the multi-horizon scenario
• Dark Matter - Dark Energy coupling biasing parameter estimates from CMB data
• Noether symmetry approach in matter-dominated cosmology with variable G and Lambda
• Linear perturbations in K-mouflage cosmologies with massive neutrinos
• Thermodynamics of Evolving Lorentzian Wormholes at Apparent Horizon in $f(R)$ Theory of Gravity
• Influence of $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ Gravity on Cylindrical Collapse
• The simplest parametrization of equation of state parameter in the scalar field Universe
• Homogeneous Gödel-type solutions in hybrid metric-Palatini gravity
• The general property of dynamical quintessence field
• Brane Cosmology with the Chameleon Scalar Field in Bulk
• Observational constraints of the gravitational waves in the Brans-Dicke theory: Einstein frame and Jordan-Brans-Dicke frame
• Constraints on the Generalized Chaplygin Gas Model from Gamma-Ray Bursts
• Massive cosmic strings in Bianchi type II
• Imaging and Demography of the Host Galaxies of High-Redshift Type Ia Supernovae
• Time-variability of the fine-structure constant expected from the Oklo constraint and the QSO absorption lines
• Current constraints on Cosmological Parameters from Microwave Background Anisotropies
• Quintessence and cosmic acceleration
• Will Jets Identify the Progenitors of Type Ia Supernovae?
• Subaru Spectroscopy of the Gravitational Lens HST 14176+5226: Implications for a Large Cosmological Constan
• Bianchi Type I Universes with Causal Bulk Viscous Cosmological Fluid
• Quintessential brane cosmology
• Einstein's Biggest Blunder? High-Redshift Supernovae and the Accelerating Universe
• Small-scale anisotropy of the cosmic background radiation and scattering by cloudy plasma
• Theoretical and numerical perspectives on cosmic distance averages
• Fock-Lorentz transformations and time-varying speed of light
• Gravitational Magnification of Pop III Supernovae in Hierarchical Cosmological Models: NGST Perspectives
• Study of Charged Cylindrical Collapse in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ Gravity
• Large primordial gravitational wave background in a class of BSI Lambda-CDM models
• Duality between equilibrium and growing networks
• The Expected Rate of Gamma-Ray Burst Afterglows In Supernova Searches
• Fermionic Isocurvature Perturbations
• Scalar Field Reconstruction of Power-Law Entropy-Corrected HDE
• Cosmological constraints on polytropic gas model
• Reconstructions of $f(T)$ Gravity from Entropy Corrected Holographic and New Agegraphic Dark Energy Models in Power-law and Logarithmic Versions
• Phase space analysis of the bouncing universe with stringy effects
• Constraints on mixing angles of Majorana neutrinos
• Late time cosmological scenarios from scalar field with Gauss Bonnet and non-minimal kinetic couplings
• Stability of a Class of Non-Static Axial Self-Gravitating Systems in $f(R)$ Gravity
• CMB anisotropies from pre-big bang cosmology
• Reconstructing Cosmological Matter Perturbations using Standard Candles and Rulers
• Crossing the phantom divide line in the Holographic dark energy model in a closed universe
• Bianchi II with time varying constants. Self-similar approach
• An Isocurvature Mechanism for Structure Formation
• Eternally accelerating universe without event horizon
• A Comment or two on Holographic Dark Energy
• Properties of cosmologies with dynamical pseudo Nambu-Goldstone bosons
• Proposal for a Constant Cosmological Constant
• Gravitational waves in the generalized Chaplygin gas model
• Growth of perturbations in dark energy parametrization scenarios
• Charged-rotating black holes and black strings in higher dimensional Einstein-Maxwell theory with a positive cosmological constant
• Roles of Modified Chaplygin-Jacobi and Chaplygin-Abel Gases in FRW Universe
• Dynamical System Approach to Cosmological Models with a Varying Speed of Light
• Kaluza-Klein Type Robertson Walker Cosmological Model With Dynamical Cosmological Term $\Lambda$
• Revisiting the matter power spectra in $f(R)$ gravity
• Dynamical apparent horizons in inhomogeneous Brans-Dicke universes
• Cosmological evolution of thermal relic particles in $f(R)$ gravity
• QCD modified ghost scalar field dark energy models
• A new class of holographic dark energy models in LRS Bianchi Type-I
• Thermodynamical Behaviour of Inhomogeneous Universe with Varying $\Lambda$ in Presence of Electromagnetic Field
• Neutrino Dark Energy and Moduli Stabilization in a BPS Braneworld Scenario
• Equilibrium of large astrophysical structures in the Newton-Hooke spacetime
• New Class of Dark Matter Objects and their Detection
• Gravitational Lensing Limits on the Average Redshift of Gamma-Ray Bursts
• Cosmological dark fluid from five-dimensional vacuum
• Does the diffusion DM-DE interaction model solve cosmological puzzles?
• Charged Black Holes with Yukawa Potential
• Effective Dark Matter Halo catalog in $f(R)$ gravity
• Generalized Galileon Model -- cosmological reconstruction and the Vainshtein mechanism --
• Accretion of Dark Energy onto Higher Dimensional Charged BTZ Black Hole
• Cosmological Dynamics of Modified Gravity With a Non-minimal Curvature-matter Coupling
• Early X-ray emission from Type Ia supernovae originating from symbiotic progenitors or recurrent novae
• The HST See Change Program: I. Survey Design, Pipeline, and Supernova Discoveries
• Gravity and Mirror Gravity in Plebanski Formulation
• Gamma-ray burst cosmology: Hubble diagram and star formation history
• Phase-space analysis of dark energy models in non-minimally coupled theories of gravity
• A transition between bouncing hyper-inflation to ΛCDM from diffusive scalar fields
• Cosmic acceleration and de Sitter expansion in hybrid mass varying neutrino model
• The Inflationary Gravity Waves in light of recent Cosmic Microwave Background Anisotropies data
• Photometric Redshifts and Morphologies of Galaxies in the NICMOS Parallel Fields
• The lepton asymmetry: the last chance for a critical-density cosmology?
• Fluid-gravity correspondence in the scalar-tensor theory of gravity: (in)equivalence of Einstein and Jordan frames
• Inhomogeneous Bulk Viscous Fluid Universe with Electromagnetic Field and Variable $\Lambda$-Term
• Future deceleration due to cosmic backreaction in presence of the event horizon
• Constraining H0 in General Dark Energy Models from Sunyaev-Zeldovich/X-ray Technique and Complementary Probes
• Rest-Frame R-band Lightcurve of a z~1.3 Supernova Obtained with Keck Laser Adaptive Optics
• Consequences of f(R)-theories of gravity on gravitational leptogenesis
• Dark Energy Models and Laws of Thermodynamics in Bianchi I Model
• Phase-space analysis of the cosmological 3-fluid problem: Families of attractors and repellers
• Crossing the Phantom divide line in the Chaplygin gas model
• Dark Energy From Fifth Dimensional Brans-Dicke Theory
• The tension on the cosmological parameters from different observational data
• Nonminimal Einstein-Maxwell-Vlasov-axion model
• Higher dimensional dust collapse with a cosmological constant
• Emergent Universe in the Braneworld Scenario
• Radiation Heat Transfer in Particle-Laden Gaseous Flame: Flame Acceleration and Triggering Detonation
• The Age-Redshift Relationship of Old Passive Galaxies
• Testing the cosmic conservation of photon number with type Ia supernovae and ages of old objects
• Studying the Intervention of an Unusual Term in $f(T)$ Gravity via Noether Symmetry
• Revisiting the screening mechanism in $f(R)$ gravity
• Quintessence as k-essence
• Cosmological Tests With Strong Gravitational Lenses using Gaussian Processes
• Electrodynamics of a Cosmic Dark Fluid
• Recovering $\Lambda$CDM Model From a Cosmographic Study
• Axially magnetized Dark Energy cosmological model
• FLRW accelerating universe with interactive dark energy
• Sub-Quantum Dark Energy
• R\' enyi Holographic Dark Energy in Higher Dimension Cosmology
• Triad representation of the Chern-Simons state in quantum gravity
• Phenomenology of Neutrino Oscillations
• Cosmological parameters from complementary observations of the Universe
• Charged Anisotropic Spherical Collapse in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ Gravity
• Testing dark matter with high-redshift supernovae
• Future Island Universes in a Background Universe Accelerated by Cosmological Constant and by Quintessence
• Running Vacuum Cosmological Models: Linear Scalar Perturbations
• An FLRW interacting dark energy model of the Universe
• A Classical Treatment of Island Cosmology
• A New Class of Bianchi Type-I Cosmological Models in Scalar-Tensor Theory of Gravitation and Late Time Acceleration
• Accretions of Various Types of Dark Energies onto Morris-Thorne Wormhole
• Multi-fluid cosmology in Einstein gravity: analytical solutions
• Dynamics of Axial Symmetric System in Self-Interacting Brans-Dicke Gravity
• Generalized Self-similar Scalar-Tensor Theories
• Deformation of Second and Third Quantization
• Correcting for peculiar velocities of Type Ia Supernovae in clusters of galaxies
• Finite Tsallis Gravitational Partition Function for a System of Galaxies
• Particle Production in f(R) Gravity during Structure Formation
• Cosmic Type Ia SN rate and constraints on SN Ia progenitors
• Electromagnetic waves in an axion-active relativistic plasma non-minimally coupled to gravity
• Interacting Quintessence in a New Scalar-Torsion Gravity
• Cosmological Parameters 2000
• Non-virialised clusters for detection of Dark Energy-Dark Matter interaction
• Horizon thermodynamics in holographic cosmological models with a power-law term
• Scenario of inflationary cosmology from the phenomenological $\Lambda$ models
• Coupled quintessence with a possible transient accelerating phase
• A Two-point Diagnostic for the HII Galaxy Hubble Diagram
• Parametrizations of Dark Energy Models in the Background of General Non-canonical Scalar Field in $D$-dimensional Fractal Universe
• Dynamics of interacting scalar field model in the realm of chiral cosmology
• Noether Symmetries of a Modified Model in Teleparallel Gravity and a New Approach for Exact Solutions
• Search for environment-dependent dilatons
• Higher Dimensional Dust Cosmological Implications of a Decay Law for $\Lambda$ Term : Expressions for Some Observable Quantities
• Cosmological Tests of $f(R,G,T)$ Dark Energy Model in FRW Universe
• Evolution of thermodynamic quantities on cosmological horizon in $\Lambda (t)$ model
• From the Neutrino to the Edge of the Universe
• Dark Energy Nature in Logarithmic $f(R,T)$ Cosmology
• Mass Generation for an Ultralight Axion
• Cosmological Tests with the Joint Lightcurve Analysis
• Vacuum Bubbles Nucleation and Dark Matter Production through Gauge Symmetry Rearrangement
• Supersymmetric dark matter with a cosmological constant
• Rapid Oscillatory quintessence with variable equation of state parameter in non minimal derivative coupling model
• Quintom dark energy in DGP braneworld cosmology
• Quintessence Model and Observational Constraints
• Inference for the dark energy equation of state using Type IA supernova data
• Investigating The Hubble Tension Through Hubble Parameter Data
• Dynamical age of the universe as a constraint on the parametrization of dark energy equation of state
• Configurational Entropy and braneworlds in f(T,B) gravity
• Symmetric-Bounce Quantum State of the Universe
• Thermodynamics of Modified Chaplygin Gas and Tachyonic Field
• A Dynamical System Analysis of Holographic Dark Energy Models with Different IR Cutoff
• Cosmological Constant in a Model with Superstring-Inspired E_6 Unification and Shadow Theta-Particles
• Collapsing scenario for the k-essence emergent generalised Vaidya spacetime in the context of massive gravity's rainbow
• Cosmic Acceleration and Anisotropic models with Magnetic field
• FRW dark energy cosmological model with hybrid expansion law
• Relic gravitational waves and the generalized second law
• Issues in the Philosophy of Cosmology
• Stable de Sitter Vacua in 4 Dimensional Supergravity Originating from 5 Dimensions
• On the consistency of a repulsive gravity phase in the early Universe
• Compact Stars in Vector-Tensor-Horndeski Theory of Gravity
• Determination of Reddening and Extinction Due to Dust in APM Galaxy Clusters
• Analytical Gaussian Process Cosmography: Unveiling Insights into Matter-Energy Density Parameter at Present
• Observation constraints on scalar field cosmological model in Anisotropic universe
• From Global to Local Dynamics: Effects of the Expansion on Astrophysical Structures
• Cosmological Models and Renormalization Group Flow
• Observational constraints on the braneworld model with brane-bulk energy exchange
• Exploring the Cosmological Model in $f(R,T^{\varphi })$ Gravity with Observational Constraints
• Bianchi type-VI anisotropic dark energy model with varying EoS parameter
• Curvature dominance DE-model in $f(R)$-gravity
• Natural scaling for dark energy
• Probing the semi-macroscopic vacuum by higher-harmonic generation under focused intense laser fields
• Turnaround size of non-spherical structures
• Time Dependent Geometry in Massive Gravity
• Times of arrival (TOA) of signals in the Kerr-MOG black hole
• Minimal model dependent constraints on cosmological nuisance parameters and cosmic curvature from combinations of cosmological data
• Dust-filled axially symmetric universes with a cosmological constant
• Discreteness of time in the evolution of the universe
• Stable phantom-divide crossing in two scalar models with matter
• Alternative High-z Cosmic Tracers and the Dark Energy Equation of State
• Effective dark matter power spectra in $f(R)$ gravity
• Multiple $\Lambda$CDM cosmology with string landscape features and future singularities
• Interacting Scalar and Electromagnetic Fields in $f(R,T)$ Theory of Gravity
• Emergent Cosmos in Einstein-Cartan Theory
• Topological Structure of the Vacuum, Cosmological Constant and Dark Energy
• Big Bang riddles and their revelations
• The supercluster-void network V. Alternative evidence for its regularity
• SOXS: a wide band spectrograph to follow up transients
• Unraveling the Universe with DESI
• Constraints on the speed of sound in the k-essence model of dark energy
• Gravitational Lensing Effects on High Redshift Type II Supernova Studies with NGST
• Do we need wavelets in the late Universe?
• Cosmological models of generalized ghost pilgrim dark energy (GGPDE) in the gravitation theory of Saez-Ballester
• A generalized $\Lambda$CDM model with parameterized Hubble parameter in particle creation, viscous and $f(R)$ model framework
• Renyi Holographic Dark Energy models in Teleparallel gravity
• Search for dark energy with neutron interferometry
• The cosmology of $f(R,L_m)$ gravity: constraining the background and perturbed dynamics
• Energy stored on a cosmological horizon and its thermodynamic fluctuations in holographic equipartition law
• Cosmic Mach Number as a Function of Overdensity and Galaxy Age
• One-parameter dynamical dark-energy from the generalized Chaplygin gas
• Black strings and solitons in five dimensional space-time with positive cosmological constant
• Cosmological constant influence on cosmic string spacetime
• Dynamical analysis for a scalar-tensor model with kinetic and non-minimal couplings
• A Matter Scalar Field in a Closed Universe
• Effect of cosmic backreaction on the future evolution of an accelerating universe
• Evidence for Evolution or Bias in Host Extinctions of Type 1a Supernovae at High Redshift
• Exact Geodesic Distances in FLRW Spacetimes
• Time variable $\Lambda$ and the accelerating Universe
• Information geometry in cosmological inference problems
• Can MOND type hypotheses be tested in a free fall laboratory environment?
• Astrometry and Occultation predictions to Trans-Neptunian and Centaur Objects observed within the Dark Energy Survey
• Inhomogeneous cosmologies with Q-matter and varying $\Lambda$
• Interacting quintessence cosmology from Noether symmetries: comparing theoretical predictions with observational data
• Thermodynamics in a Modified Gravity Involving Higher-Order Torsion Derivative Terms
• Energy Constraints and $F(T,T_G)$ Cosmology
• A Phantom does not Result from a Backreaction
• Steps toward the power spectrum of matter. III. The primordial spectrum
• Constraining dust and color variations of high-z SNe using NICMOS on Hubble Space Telescope
• Dark energy fingerprints in the nonminimal Wu-Yang wormhole structure
• Naked Singularity in a Modified Gravity Theory
• On cosmological solutions in a spontaneously broken gauge theory
• Averaging inhomogeneities in scalar-tensor cosmology
• ``Natural'' Vacua in Hyperbolic Friedmann-Robertson-Walker Spacetimes
• Dynamical dark energy can amplify the expansion rate of the Universe
• Anisotropic massive strings in scalar-tensor theory of gravitation
• Dynamical System Analysis of Quintessence Models with Exponential Potential -- Revisited
• Quintessential and phantom power-law solutions in scalar tensor model of dark energy
• Relationship between Bondi-Sachs quantities and source of gravitational radiation in asymptotically de Sitter spacetime
• The Equivalence between Different Dark (Matter) Energy Scenarios
• No "big trips" for the universe
• Hubble Diagram of Gamma-Rays Bursts calibrated with Gurzadyan-Xue Cosmology
• Mirror World with Broken Mirror Parity, E(6) Unification and Cosmology
• Entropy production due to adiabatic particle creation in a holographic dissipative cosmology
• Element Stratification in the Middle-Aged Type Ia Supernova Remnant G344.7-0.1
• Bianchi VI_0&III models. Self-similar approach
• Form invariant transformations between n-- and m-- dimensional flat Friedmann--Robertson--Walker cosmologies
• Utilizing the Updated Gamma-Ray Bursts and Type Ia Supernovae to Constrain the Cardassian Expansion Model and Dark Energy
• A new statistic for picking out Non-Gaussianity in the CMB
• Cluster mass function in mixed models
• Some aspects of entropic gravity in the presence of a noncommutative Schwarzschild-deSitter black hole
• Exact Solutions in Modified Gravity Models
• Study of Some Parameters of Modified Chaplygin Gas in Galileon Gravity Theory from Observational Perspective
• CMB Anisotropy Induced by a Moving Straight Cosmic String
• Cyclic Universe with an Inflationary Phase from a Cosmological Model with Real Gas Quintessence
• Light propagation with non-minimal couplings in a two-component cosmic dark fluid with an Archimedean-type force and unlighted cosmological epochs
• Relationship between (2+1) and 3+1)--Friedmann--Robertson--Walker cosmologies
• Running vacuum model in non-flat universe
• Minimal Angular Size of Distant Sources in Open, $\Lambda$CDM, and Scalar Field Cosmologies
• Possible time-variability of the fine-structure constant expected from the accelerating universe
• Decaying Vacuum Inflationary Cosmologies: A Complete Scenario Including Curvature Effects
• Gamma-ray burst afterglows as probes of galactic and intergalactic dust
• Einstein spaces in warped geometries in five dimensions
• Issues in Quantized Fractal Space Time
• Observable interactions of quintessence with ordinary matter and neutrinos
• The large scale structure formation in an expanding universe
• Quantum creation and inflationary universes: a critical appraisal
• Addressing the Hubble tension in Yukawa cosmology?
• Reconstructions of $f(\mathcal{P})$ and $f(\mathcal{Q})$ gravity models from $(m,n)$-type Barrow Holographic Dark Energy: Analysis and Observational Constraints
• Viscous Dark Energy and Phantom Field in An Anisotropic Universe
• Cosmological analytic solutions with reduced relativistic gas
• Issues and Ramifications in Quantized Fractal Space Time: An Interface with Quantum Superstrings
• Dynamics of Magnetized Bulk Viscous Strings in Brans-Dicke Gravity
• Transverse Wave Propagation in Relativistic Two-fluid Plasmas around Reissner-Nordström-de Sitter Black Hole
• Scalar Field as Dark Energy Accelerating Expansion of the Universe
• Interpreting the conformal cousin of the Husain-Martinez-Nunez solution
• A Measurement of the Cosmic Expansion Within our Lifetime
• On the problem of equation of state for the $\Lambda$ - field
• Age problem in holographic dark energy
• Search for Global Metric Anisotropy in Type Ia Supernova Data
• Supernova and Cosmology
• CMB and Large Scale Structure as a test of Mixed Models with n>1
• Observational data fitting to constrain Variable Modified Chaplygin Gas in the background of Horava-Lifshitz Gravity
• Phase space analysis for a scalar-tensor model with kinetic and Gauss-Bonnet couplings
• Tachyonic (phantom) power-law cosmology
• Gravitational lensing constraint on the cosmic equation of state
• Higher Dimensional Cosmological Implications Of A Decay Law For $\Lambda$ Term : Expressions For Some Observable Quantities
• Scenario of Accelerating Universe from the Phenomenological Λ- Models
• Lyra's Cosmology of Massive String in Anisotropic Bianchi-II Space-time
• Detectability of Cosmic Topology in Generalized Chaplygin Gas Models
• Realistic Equations of State for the Primeval Universe
• Late-time-accelerated expansion arisen from gauge fields in an anisotropic background and a fruitful trick for Noether's approach
• Transit cosmological models coupled with zero-mass scalar-field with high redshift in higher derivative theory
• Morphological Number Counts and Redshift Distributions to I = 25 from the Hubble Deep Fields: Constraints on Cosmological Models from Early Type Galaxies
• (An)Isotropic models in scalar and scalar-tensor cosmologies
• Radiative Transfer Modeling of An SN 1987A Light Echo$-$AT2019xis
• String Cosmology in Anisotropic Bianchi-II Space-time
• Spherical collapse and cluster number counts in dark energy models disformally coupled to dark matter
• Graviton mass due to dark energy as a superconducting medium: theoretical and phenomenological aspects
• Ricci curvature non-minimal derivative coupling cosmology with field re-scaling
• Evolution of dissipative and non-dissipative universes in holographic cosmological models with a power-law term
• Interacting parametrized post-Friedmann method
• Observational Constraints of Homogeneous Higher Dimensional Cosmology with Modified Chaplygin Gas
• Non perturbative renormalization group potentials and quintessence
• Closed universe and the first Doppler-peak of the CMB spectrum
• Coupled Quintessence scalar field model in light of observational datasets
• A Viable Dark Fluid Model
• Constraints on structure formation models from Sunyaev-Zel'dovich Effect
• Thermodynamics in Kaluza-Klein Universe
• No-Bang Quantum State of the Cosmos
• The Super-Stuckelberg procedure and dS in Pure Supergravity
• Observational Constraints of Modified Chaplygin Gas in RS II Brane
• Spherically symmetric solutions of light Galileon
• Brane Kantowski-Sachs Universe with Linear Equation of State and Future Singularity
• The $m$-$z$ relation for type Ia supernovae, locally inhomogeneous cosmological models, and the nature of dark matter
• Do recent supernovae Ia observations tend to rule out all the cosmologies?
• Influence of the radiation absorbed by micro particles on the flame propagation and combustion regimes
• Late cosmic acceleration in a vector--Gauss-Bonnet gravity model
• Paczynski-Wiita-like potential for any static spherical black hole in metric theories of gravity
• Cosmological singularity theorems for $f(R)$ gravity theories
• Understanding General Relativity after 100 years: A matter of perspective
• Evolution of FRW universe in variable modified Chaplygin gas model
• Multicomponent solution in modified theory of gravity in the early universe
• Magrathea-Pathfinder: A 3D adaptive-mesh code for geodesic ray tracing in $N$-body simulations
• Curvature of the universe and the dark energy potential
• Unveiling the Universe with Emerging Cosmological Probes
• Horizon thermodynamics and cosmological equations: A holographic-like connection between thermostatistical quantities on a cosmological horizon and in the bulk
• Future deceleration due to backreaction in a Universe with multiple inhomogeneous domains
• Constraining Parameters for the Accelerating Universe in $f(R,{\mathcal{L}}_m)$ Gravity
• A possible role for the merger of clusters/voids in the cosmological expansion
• Abundance stratification in type Ia supernovae -- VI: the peculiar slow decliner SN\,1999aa
• Obtaining a scalar fifth force via a broken-symmetry couple between the scalar field and matter
• Validation of Emission-Line Galaxies Target Selection Algorithms for the Dark Energy Spectroscopic Instrument Using the MMT Binospec
• Cosmological perturbations in the $\Lambda$CDM-like limit of a polytropic dark matter model
• Constraining Parameters of Generalized Cosmic Chaplygin Gas in Loop Quantum Cosmology
• The growth of linear perturbations in generic defect models for structure formation
• Cosmological observations in non-local $F(R)$ cosmology
• Anisotropic Dark Energy and the Generalized Second Law of Thermodynamics
• Non-minimal derivative coupling in Palatini cosmology: acceleration in chaotic inflation potential
• Improved Lemaitre-Tolman model and the mass and turn-around radius in group of galaxies II: the role of dark energy
• Revisiting regularization with Kaluza-Klein states and Casimir vacuum energy from extra dimensional spaces
• Cosmological model based on both holographic-like connection and Padmanabhan's holographic equipartition law
• Constraining some $r^{-n}$ extra-potentials in modified gravity models with LAGEOS-type laser-ranged geodetic satellites
• Cosmological applications in Kaluza-Klein theory
• Turnaround physics beyond spherical symmetry
• Does the particle creation mechanism favour the formation of a black hole or a naked singularity?
• Anisotropic Cosmological Model with Variable G and Lambda
• New holographic Chaplygin gas model of dark energy
• Interaction of Hawking radiation with static sources in deSitter and Schwarzschild-deSitter spacetimes
• Superluminal Vector in Ghost-free Massive Gravity
• A brief review of a modified relativity that explains cosmological constant
• Dynamics of Potentials in Bianchi Type Scalar-Tensor Cosmology
• Scenarios of cosmic string with variable cosmological constant
• Inflationary Cosmology: Theory and Phenomenology
• Stability of Circular Orbits in General Relativity: A Phase Space Analysis
• Constraints on smoothness parameter and dark energy using observational $H(z)$ data
• Bianchi {VI}${}_0$ in Scalar and Scalar-Tensor Cosmologies
• Curvature Singularity in f(R) Theories of Gravity
• A comprehensive data-driven odyssey to explore the equation of state of dark energy
• Cosmological expansion and local systems: a Lemaître-Tolman-Bondi model
• Study of Thermodynamics in Generalized Holographic and Ricci Dark Energy Models
• Can Holographic dark energy increase the mass of the wormhole?
• Observational constraints on Tsallis holographic dark energy with Ricci horizon cutoff
• (2+1) dimensional cosmological models in f(R; T) gravity with $\Lambda$(R; T)
• Relativistic anisotropic charged fluid spheres with varying cosmological constant
• On 1 + 3 covariant perturbations of the quasi-Newtonian space-time in modified Gauss-Bonnet gravity
• New Tsallis holographic dark energy with apparent horizon as IR-cutoff in non-flat Universe
• The variation of the electromagnetic coupling and quintessence
• Interacting Induced Dark Energy Model
• Probing Lambda-DGP Braneworld Model
• Thermodynamic analysis for Non-linear system (Van-der-Waals EOS) with viscous cosmology
• Omega_B and Omega_0 From MACHOs and Local Group Dynamics
• An analytical solution in the complex plane for the luminosity distance in flat cosmology
• Thermodynamics of Modified Chaplygin-Jacobi Gas and Modified Chaplygin-Abel Gas: Stability Analysis and Observational Constraints
• Gravi-Weak Unification and the Black-Hole-Hedgehog's Solution with Magnetic Field Contribution
• Aspects of gauged R-symmetry in SU(1,1)/U(1) supergravity
• Interaction of Neutrinos with a Cosmological K-essence Scalar
• Varying Speed of Light, Modified Chaplygin Gas and Accelerating Universe
• Interacting non-minimally coupled canonical, phantom and quintom models of holographic dark energy in non-flat universe
• Dynamics of holographic dark energy with apparent-horizon cutoff and non-minimal derivative coupling gravity in non-flat FLRW universe
• Statefinder Diagnostic for Dark Energy Models in Bianchi I Universe
• The weak anthropic principle and the landscape of string theory
• Cosmological implications of Born-Infeld-$f(R)$ gravity
• Revised fits to $\Delta \alpha /\alpha$ in consistency with the accelerating universe
• Redshift evolution of the Hubble constant: Constraints and new insights from an interacting dark energy model
• Inflation Induced by Vacuum Energy and Graceful Exit from it
• Modification to the Luminosity Distance Redshift Relation in Modified Gravity Theories
• Gauge Invariant Perturbation Analysis for Quintessence with an Exponential Potential
• Gravitational Forces on a Codimension-2 Brane
• The Cosmology of Fluctuations
• Qualitative analysis of a scalar-tensor theory with exponential potential
• Augmenting photometric redshift estimates using spectroscopic nearest neighbours
• The role of Dark Matter interaction in galaxy clusters
• Interacting and Non-interacting Reńyi Holographic Dark Energy Models in DGP Braneworld
• A Solution to the Cosmological Constant Problem
• Nature of Dark Energy and Polarization Measurements
• Gravitational Mass in Asymptotically de Sitter Space-Times with Compactified Dimensions
• Cosmic curvature on large-scale structures with homogeneous dark energy
• Viability of Arctan Model of f(R) Gravity for Late-time Cosmology
• Role of a periodic varying deceleration parameter in Particle creation with higher dimensional FLRW Universe
• A Scaling Relation in Inhomogeneous Cosmology with k-essence scalar fields
• CP noninvariance and an effective cosmological constant: the energy density in a pseudoscalar field which arises from a cosmological, spontaneously-broken chiral symmetry
• A Silent Revolution in Fundamental Astrophysics
• Dynamics of Multi-Component, Multi-Field Quintessence
• A critical-density closed Universe in Brans-Dicke theory
• Thermodynamics and energy condition analysis for Van-Der-Waals EOS without viscous cosmology
• Analytical considerations about the cosmological constant and dark energy
• Cosmological aspects of a vector field model
• Gravastar in the framework of Loop Quantum Cosmology
• Five-Dimrnsional Cosmological Theory of Unified Space, Time and Velocity
• Gödel-type solutions in $f(R,T,R_{\mu \nu }{T}^{\mu \nu }$) gravity
• Anisotropic Brane Cosmology with Variable $G$ and $\Lambda$
• A new global 1-form in Lyra geometric cosmos model
• Generalized Ghost Pilgrim Dark Energy Fractal Cosmology with Observational Constraint
• A test of local Lorentz invariance with Compton scattering asymmetry
• Horizons and singularity in Clifton's spherical solution of f(R) vacuum
• Analytical model of compact star in low-mass X-ray binary with de Sitter spacetime
• An exact solution of the observable universe in Bianchi V space-time
• Wave Function of the Universe from a Matrix Valued First-Order Formalism
• Observational constraints on a Yang-Mills condensate dark energy model
• Accelerated closed universes in scalar-tensor theories
• Scalar fields in an anisotropic closed universe
• Dynamical System Analysis Of Chameleon Mechanism in Brans-Dicke Scalar-Tensor Model
• The sounds of science a symphony for many instruments and voices part II
• Anisotropic background for two fluids: matter and holographic dark energy
• Reconstructions of Einstein-Aether Gravity from Barrow Agegraphic and New Barrow Agegraphic Dark Energy models: Examinations and Observational Limits
• Instability Analysis of Cylindrical Stellar Object in Brans-Dicke Gravity
• Stellar isotropic model in the symmetric teleparallel equivalent of general relativity theory
• Indirect detection of Cosmological Constant from interacting open quantum system
• A comprehensive analysis of Barrow holographic Chaplygin gas model reconstruction and its cosmological consequences
• Exact solutions in a scalar-tensor model of dark energy
• Dynamical System Analysis of a Five-Dimensional Cosmological Model
• Vacuum energy, the Casimir effect, and Newton's non-constant
• Observational Study of Higher Dimensional Magnetic Universe in Non-linear Electrodynamics
• New Class of Magnetized Inhomogeneous Bianchi Type-I Cosmological Model with Variable Magnetic Permeability in Lyra Geometry
• Thermodynamic Prescription of Cosmological Constant in Randall Sundrum-II Brane
• Holographic thermodynamic relation for dissipative and non-dissipative universes in a flat FLRW cosmology
• Comparison of $f(R,T)$ Gravity with Type Ia Supernovae Data
• Black holes in $f(R)$ gravity coupled to nonlinear electromagnetic fields
• Domain Wall and Holographic Dark Energy in $f(Q)$ Theory of Gravity
• On the Field Theoretical Description of an Alternative Model to Generalized Chaplygin Gas and its Thermodynamic Behaviour
• Interacting dark sector with quadratic coupling: theoretical and observational viability
• Characterizing the equivalence between dark energy and radiation using gamma-ray bursts
• Statistical evaluation of the observational information on ${\Omega }_m$ and ${\Omega }_{\Lambda }$
• Cosmic scalar fields with flat potential
• Anisotropic cosmology using observational datasets: exploring via machine learning approaches
• Observational constraints in late time for an axially symmetric transitioning model with bulk viscous fluid
• Cosmology in holographic non-minimal derivative coupling theory: constraints from inflation and variation of gravitational constant
• Could trapped quintessence account for the laser-detuning-dependent acceleration of cold atoms in varying-frequency time-of-flight experiments?
• Twinlike models for parametrized dark energy
• Cosmological nanolensing by dense gas clouds
• Baryon Acoustic Oscillations from Integrated Neutral Gas Observations: an instrument to observe the 21cm hydrogen line in the redshift range 0.13 $<$ z $<$ 0.45 -- status update
• Periodic distribution of galaxies in generalized scalar tensor theory
• Dark Energy from Topology
• Cosmology in a model with Lagrange multiplier, and Gauss-Bonnet and non-minimal kinetic couplings
• Is the Cosmological Constant of Topological Origin?
• FLRW Cosmology of Induced Dark Energy Model and Open Universe
• The Dynamics of Brane-World Cosmological Models
• Study of Some Cosmological Parameters for Interacting New Holographic Dark Energy Model in f(T) Gravity
• Implications upon theory discrimination of an accurate measurement of the time rate of change of the gravitational parameter and other cosmological parameters
• A theoretically-explained new-variant of Modified-Newtonian-Dynamics (MOND)
• Dark matter searches with asteroseismology
• A Critique of Drexler Dark Matter
• Gauss Bonnet dark energy Chaplygin Gas Model
• Spintessence: a possible candidate as a driver of the late time cosmic acceleration
• High Energy Dirac Solutions: Issues and Ramifications
• Power-law expansion and Higgs-type potential in a scalar-tensor model
• The electromagnetic coupling and the dark side of the Universe
• Accelerated expansion of a universe containing a self-interacting Bose-Einstein gas
• Numerically Investigating the Emergent Cyclic Inflation Scenario
• Gravitational lenses in the dark Universe
• A novel model of non-singular oscillating cosmology on flat Randall-Sundrum II braneworld
• On Local Approximations to the Nonlinear Evolution of Large-Scale Structure
• Cluster Correlation in Mixed Models
• Nonanalytic metric in the presence of gravitomagnetic monopoles
• Red-shift parametrizations of dark energy and observational constraint on their parameters: Galileon gravity as background
• Cosmological constant and the fate of the DDM theory
• Asymptotically Non-Static Kerr-deSitter Spacetime With No Event Horizon
• New Classes of Cosmic Energy and Primordial Black-Hole Formation
• Cosmological parameters from observational data on the large scale structure of the Universe
• Accelerated Expansion: Theory and Observations
• The Vacuum Energy in a Condensate Model for Spacetime
• Constraining Lambda using cluster quadrupoles
• Finite scale factor and future singularities
• Dynamics of the Universe with global rotation
• Cosmology with dark energy decaying through its chemical-potential contribution
• Dark Energy and Dark Matter in a Model of an Axion Coupled to a Non-Abelian Gauge Field
• Weyl transformation: a dynamical degree of freedom in the light of Dirac's Large Number Hypothesis
• The Day the Universes Interacted: Quantum Cosmology without a Wave function
• Violation of the cosmic no hair conjecture in Einstein-Maxwell-dilaton system
• The Newton constant and gravitational waves in some vector field adjusting mechanisms
• Phenomenological aspects of dark energy dominated cosmologies
• Introduction to Supersymmetry: Astrophysical and Phenomenological Constraints
• Boundary terms and Brown-York quasi-local parameters for scalar-tensor theory: a study on both timelike and null hypersurfaces
• Observable predictions of generalised inflationary scenarios
• Einstein Manifolds, Abelian Instantons, Bundle Reduction, and the Cosmological Constant
• SnIa Constraints on the event-horizon Thermodynamical model of Dark Energy
• Accelerating and decelerating cosmology from spinor and scalar fields non-minimally coupled with f(R) gravity
• Turnaround radius in scalar-tensor gravity with quasilocal mass
• The Self-Calibrating Hubble Diagram
• Instruments on large optical telescopes -- A case study
• Early Tracking Behavior in Small-field Quintessence Models
• An accelerated closed universe
• Competition Between Gravitational and Scalar Field Radiation
• Bianchi type-III THDE quintessence model with hybrid expansion law
• K-essential Phantom Energy: Doomsday around the Corner? Revisited
• Localized Particle States and Dynamics Gravitational Effects
• Testing modified (Horndeski) gravity by combining intrinsic galaxyalignments with cosmic shear
• Gödel-type solutions in hybrid metric-Palatini gravity
• Cosmological constraints from supernova data set with corrected redshift
• Cosmological scenario based on the first and second laws of thermodynamics: Thermodynamic constraints on a generalized cosmological model
• Harmonic potential as an effective limit of a discrete classical interaction
• The Spirit of Unification: The Wei of Physics
• String Cosmology in LRS Bianchi Type-II Dusty Universe with Time Decaying Vacuum Energy Density $\Lambda$
• Expanding Universe: Thermodynamical Aspects From Different Models
• Digging down the past
• CMB with Quintessence: Analytic Approach and CMBFAST
• Dark energy from a geometrical gauge scalar-tensor theory of gravity
• From Space and Time to a Deeper Reality as a Possible Way to Solve Global Problems
• Constraints on the Cosmological Constant in a Static Geometry from Periodicity in a Compact Fifth-Dimension
• Abundance stratification in type Ia supernovae -- VII. The peculiar, C-rich iPTF16abc: highlighting diversity among luminous events
• Effects of dynamical friction on perturbations for evolving dark energy
• Scalar field models for an accelerating universe
• Quasiparticle Cosmology
• Bounce and wormholes
• Tachyonic fields in cosmology
• Consequences of a Quantized Spacetime Model
• Reconstruction of Tsallis Holographic Dark Energy via Modified Non-Metric Gravity: An $f(Q,C)$ Approach
• Is Dark Energy Increasing or Decreasing in the Late Universe?
• Before the Bang
• Black holes in $f(R,T)$ gravity coupled with Euler-Heisenberg electrodynamics
• Quintessence dark energy model in non-linear $f(Q)$ theory with bulk-viscosity
• A semi-cosmographic approach to study cosmological evolution in phase space
• Supernovae Light Curves: An Argument for a New Distance Modulus
• Searching for Chameleon-like Scalar Fields
• The existence of smooth solutions in q-theories
• High Performance Algorithms for Quantum Gravity and Cosmology
• Phase space of multi-fluid universe in $F(T)$-gravity and some enhancements for the oscillating interaction model
• GUP-corrected $\Lambda$CDM cosmology
• A Natural Cosmological Model with Omega_matter <1
• Notes on the compatibility of type Ia supernovae data and varying--$G$ cosmology
• The Black Hole Information Puzzle and Evidence for a Cosmological Constant
• Cosmological Constraints on the DGP Model in light of DESI DR2 2025 Data
• Curvature in causal BD-type inflationary cosmology
• A Combined Barrow Entropy and QCD Ghost Mechanism for Late-Time Cosmic Acceleration
• Axisymmetric Galaxy Distribution and the Center of the Universe
• Dynamical friction shear and rotation in Chaplygin cosmology
• An introduction to the time evolution of model universes
• Dynamics of quasi de Sitter and linear combination of exponential models in extended gravity
• Tracing Signatures of Modified Gravity in Redshift-Space Galaxy Bispectrum Multipoles: Prospects for Euclid
• Ignition of Deflagration and Detonation Ahead of the Flame due to Radiative Preheating of Suspended Micro Particles
• Exploration of Parameters in f(R,T) Gravity and Comparison with Type Ia Supernovae Data
• Quantization of Yang-Mills Theory in de Sitter Spacetime
• A causal model for a closed universe
• Bayesian evidence and model selection approach for time-dependent dark energy
• Dark Energy Induced Anisotropy in Cosmic Expansion
• A topological origin for Dark Energy
• Inflationary phase and role of dark energy: Revisited
• Genetic algorithm demystified for cosmological parameter estimation
• An Ever Expanding Universe?
• Neutrinos Mass and Mixing
• The Cosmological Arrow of Time and the Retarded Potentials
• CMB Tensor Anisotropies in f(R) Gravity
• Self-restriction of Gravitational Field and its Role in the Universe
• Covariant density and velocity perturbations of the quasi-Newtonian cosmological model in $f(T)$ gravity
• Fluctuation of the Hubble parameter
• Late time cosmological solutions in $f(R,T)$ gravity in a viscous Universe
• Cosmic Acceleration from Elementary Interactions
• Is cosmic expansion of the universe accelerating?
• Cosmic Magnetic Fields
• Differences between scalar field and scalar density solutions
• An Inertial Reaction to Cosmological Accelerations
• Radiation dominated era and the power of general relativity
• Squared-field cross-correlation between kinetic Sunyaev-Zel'dovich effect and 21-cm intensity mapping
• Intermediate redshift calibration of Gamma-ray Bursts and cosmic constraints in non-flat cosmology
• Cosmological Consequences of Varying Couplings in Gravity Action
• Scalar Gravity and Higgs Mechanism
• ELT Observations of Supernovae at the Edge of the Universe