Mass Modeling and Kinematics of Galaxy Clusters in Modified Gravity
arXiv:2407.08778 · doi:10.1088/1475-7516/2024/11/014
Abstract
The chameleon screening mechanism has been constrained many a time using dynamic and kinematic galaxy cluster observables. Current constraints are, however, insensitive to different mass components within galaxy clusters and have been mainly focused on a single mass density profile, the Navarro-Frenk-While mass density model. In this work, we extend the study of the Chameleon screening mechanism in galaxy clusters by considering a series of mass density models, namely: generalized-Navarro-Frenk-While, b-Navarro-Frenk-While, Burket, Isothermal and Einasto. The coupling strength () and asymptotic value of the chameleon field () are constrained by using kinematics analyses of simulated galaxy clusters, generated both assuming General Relativity and a strong chameleon scenario. By implementing a Bayesian analysis we comprehensively show that the biases introduced due to an incorrect assumption of the mass model are minimal. Similarly, we also demonstrate that a spurious detection of evidence for modifications to gravity is highly unlikely when utilizing the kinematics of galaxy clusters.
25 pages, 7 Figures, submitted to JCAP
References in corpus (65)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Planck 2015 results. XIII. Cosmological parameters
- The Structure of Cold Dark Matter Halos
- Modified Gravity and Cosmology
- Cosmological Imprint of an Energy Component with General Equation of State
- Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
- The Cosmological Constant
- Exploring the Expansion History of the Universe
- Planck 2018 results. I. Overview and the cosmological legacy of Planck
- Chameleon Fields: Awaiting Surprises for Tests of Gravity in Space
- Disappearing cosmological constant in f(R) gravity
- Bayes in the sky: Bayesian inference and model selection in cosmology
- Analytical Models For Galactic Nuclei
- Scalar-Tensor-Vector Gravity Theory
- Beyond CDM: Problems, solutions, and the road ahead
- Detecting Dark Energy in Orbit -- the Cosmological Chameleon
- Constraining f(R) Gravity as a Scalar Tensor Theory
- f(R) Gravity and Chameleon Theories
- Dark matter in elliptical galaxies: II. Estimating the mass within the virial radius
- Modified theories of Gravity: Why, How and What?
- CLASH: Joint Analysis of Strong-Lensing, Weak-Lensing Shear and Magnification Data for 20 Galaxy Clusters
- Non-linear evolution of f(R) cosmologies II: power spectrum
- MAMPOSSt: Modelling Anisotropy and Mass Profiles of Observed Spherical Systems. I. Gaussian 3D velocities
- f(R) actions, cosmic acceleration and local tests of gravity
- The structure and evolution of weakly self-interacting cold dark matter halos
- Hydrostatic mass profiles in X-COP galaxy clusters
- Density profile of dark matter haloes and galaxies in the Horizon-AGN simulation: the impact of AGN feedback
- Cluster-galaxy weak lensing
- Probing Dark Energy with Atom Interferometry
- Brans-Dicke gravity with a cosmological constant smoothes out CDM tensions
- Velocity dispersion around ellipticals in MOND
- Testing chameleon gravity with the Coma cluster
- The radial distribution of galaxies in groups and clusters
- The Cosmological Constant Problem and Running Vacuum in the Expanding Universe
- The XMM Cluster Survey: Testing chameleon gravity using the profiles of clusters
- Strong evidence for an accelerating universe
- Chameleon f(R) gravity in the virialized cluster
- First Sunyaev-Zel'dovich mapping with the NIKA2 camera: Implication of cluster substructures for the pressure profile and mass estimate
- Systematic simulations of modified gravity: chameleon models
- Small Scale Structure Formation in Chameleon Cosmology
- Galaxy morphology rules out astrophysically relevant Hu-Sawicki gravity
- Halo modelling in chameleon theories
- Cluster abundance in chameleon gravity I: toward an accurate halo mass function prediction
- Structural and dynamical modeling of WINGS clusters. II. The orbital anisotropies of elliptical, spiral and lenticular galaxies
- Accelerating expansion of the universe in modified symmetric teleparallel gravity
- CLASH-VLT: a full dynamical reconstruction of the mass profile of Abell S1063 from 1 kpc out to the virial radius
- Les Houches Lectures on Physics Beyond the Standard Model of Cosmology
- Gas density profile in dark matter halo in chameleon cosmology
- Comparison of weak lensing by NFW and Einasto halos and systematic errors
- Imprints of Chameleon f(R) Gravity on Galaxy Rotation Curves
- Constraint on Gravity through the Redshift Space Distortion
- An Introduction to Chameleon Gravity
- On the physical basis of cosmic time
- Investigating the accelerated expansion of the Universe through updated constraints on viable models within the metric formalism
- The shape dependence of chameleon screening
- A general study of chameleon fifth force in gravity space experiments
- An anisotropic, non-singular early universe model leading to a realistic cosmology
- MG-MAMPOSSt: A code to test modifications of gravity with the dynamics of galaxy clusters
- Stringent Pulsar Timing Bounds on Light Scalar Couplings to Matter
- Constraints on chameleon gravity from the measurement of the electrostatic stiffness of the MICROSCOPE mission accelerometers
- CLASH-VLT: The inner slope of the MACS J1206.2-0847 dark matter density profile
- Dark Matter Halo Sparsity of Modified Gravity Scenarios
- Constraining Chameleon screening using galaxy cluster dynamics
- How CMB and large-scale structure constrain chameleon interacting dark energy
- Caustic and hydrostatic mass bias: Implications for modified gravity