296 citations · 6.5k across the 170 of their papers we have counts for
78 papers · 1 filter
The miniJPAS survey: clusters and galaxy groups detection with AMICO
M. Maturi, A. Finoguenov, P. A. A. Lopes +31
Samples of galaxy clusters allow us to better understand the physics at play in galaxy formation and to constrain cosmological models once their mass, position (for clustering stud…
Forecasting constraints on the baryon mass fraction in the IGM from fast radio bursts and type Ia supernovae
Thais Lemos, Rodrigo S. Gonçalves, Joel C. Carvalho +1
Fast Radio Bursts (FRBs) are millisecond transient radio events with a high energy. By identifying the origin of the \textbf{burst}, it is possible to measure the redshift of the h…
Constraints on the non-minimally coupled Witten-O'Raifeartaigh inflation
F. B. M. dos Santos, R. Silva, J. S. Alcaniz
We investigate the impact of a non-minimal coupling of the scalar field with gravity in inflationary models, where a small coupling is allowed. As a concrete example, we consider t…
Low-redshift estimates of the absolute scale of baryon acoustic oscillations
Thais Lemos, Ruchika, Joel C. Carvalho +1
Measurements of the characteristic length scale of the baryon acoustic oscillations (BAO) provide a robust determination of the distance-redshift relation. Currently, the bes…
Higgs Inflation: constraining the top quark mass and breaking the - correlation
Jamerson G. Rodrigues, Micol Benetti, Rayff de Souza +1
Extending previous results [JHEP 11 (2021) 091], we explore aspects of the reheating mechanism for non-minimal Higgs inflation in the strong coupling regime. We constrain the radia…
The Hubble Constant Troubled by Dark Matter in Non-Standard Cosmologies
Jailson S. Alcaniz, Jacinto P. Neto, Farinaldo S. Queiroz +2
The Standard Cosmological Model has experienced tremendous success at reproducing observational data by assuming a universe dominated by a cosmological constant and dark matter in…
Measuring the Hubble Constant with cosmic chronometers: a machine learning approach
Carlos Bengaly, Maria Aldinez Dantas, Luciano Casarini +1
Local measurements of the Hubble constant () based on Cepheids e Type Ia supernova differ by from the estimated value of from Planck CMB observations under…
Warm -exponential inflation and the Swampland Conjectures
F. B. M. dos Santos, R. Silva, S. Santos da Costa +2
We investigate theoretical and observational aspects of a warm inflation scenario driven by the -exponential potential, which generalizes the well-known power law inflation. In…
One-parameter dynamical dark-energy from the generalized Chaplygin gas
Rodrigo von Marttens, Dinorah Barbosa, Jailson Alcaniz
The fact that Einstein's equations connect the space-time geometry to the total matter content of the cosmic substratum, but not to individual contributions of the matter species,…
Cosmological model-independent constraints on the baryon fraction in the IGM from fast radio bursts and supernovae data
Thais Lemos, Rodrigo S. Gonçalves, Joel C. Carvalho +1
Fast Radio Bursts (FRBs) are millisecond-duration radio transients with an observed dispersion measure () greater than the expected Milky Way contribution, which suggests that…
The angular scale of homogeneity with SDSS-IV DR16 Luminous Red Galaxies
Uendert Andrade, Rodrigo S. Gonçalves, Gabriela C. Carvalho +3
We report measurements of the angular scale of cosmic homogeneity () using the recently released luminous red galaxy sample of the sixteenth data release of the Sloan Digita…
A Test of the Standard Cosmological Model with Geometry and Growth
Uendert Andrade, Dhayaa Anbajagane, Rodrigo von Marttens +2
We perform a general test of the and cosmological models by comparing constraints on the geometry of the expansion history to those on the growth of stru…
Testing the consistency between cosmological data: the impact of spatial curvature and the dark energy EoS
Javier E. Gonzalez, Micol Benetti, Rodrigo von Marttens +1
The results of joint analyses of available cosmological data have motivated an important debate about a possible detection of a non-zero spatial curvature. If confirmed, such a res…
J-PAS: Forecasts for dark matter - dark energy elastic couplings
David Figueruelo, Miguel Aparicio Resco, Florencia A. Teppa Pannia +21
We consider a cosmological model where dark matter and dark energy feature a coupling that only affects their momentum transfer in the corresponding Euler equations. We perform a f…
Dark sector interactions and the curvature of the Universe in light of Planck's 2018 data
Micol Benetti, Humberto Borges, Cassio Pigozzo +2
We investigate the observational viability of a class of interacting dark energy (iDE) models in the light of the latest Cosmic Microwave Background (CMB), type Ia supernovae (SNe)…
J-PAS: forecasts on interacting vacuum energy models
V. Salzano, C. Pigozzo, M. Benetti +21
The next generation of galaxy surveys will allow us to test some fundamental aspects of the standard cosmological model, including the assumption of a minimal coupling between the…
A model-independent reconstruction of dark sector interactions
Rodrigo von Marttens, Javier E. Gonzalez, Jailson Alcaniz +2
Relaxing the conventional assumption of a minimal coupling between the dark matter (DM) and dark energy (DE) fields introduces significant changes in the predicted evolution of the…
Measuring the cosmic homogeneity scale with SDSS-IV DR16 Quasars
Rodrigo S. Gonçalves, Gabriela C. Carvalho, Uendert Andrade +3
We report measurements of the scale of cosmic homogeneity () using the recently released quasar sample of the sixteenth data release of the Sloan Digital Sky Survey (SDSS-IV…
Thermodynamic Constraints on the Dark Sector
W. J. C. da Silva, J. E. Gonzalez, R. Silva +1
In this paper, we present a unified scheme based on the fluid description of the dark sector of the universe. The scheme captures models with interaction between dark energy and da…
The miniJPAS survey: a preview of the Universe in 56 colours
S. Bonoli, A. Marín-Franch, J. Varela +166
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will soon start to scan thousands of square degrees of the northern extragalactic sky with a unique…
Is there evidence for a hotter Universe?
Carlos A. P. Bengaly, Javier E. Gonzalez, Jailson S. Alcaniz
The measurement of present-day temperature of the Cosmic Microwave Background (CMB), K (1), made by the Far-InfraRed Absolute Spectrophotometer (FIRA…
Observational constraints on -attractor inflationary models with a Higgs-like potential
J. G. Rodrigues, S. Santos da Costa, J. S. Alcaniz
We investigate the observational viability of a class of -attractors inflationary models in light of the most recent Cosmic Microwave Background (CMB) and Large-Scale Structure…
Brane inflation and the robustness of the Starobinsky inflationary model
S. Santos da Costa, M. Benetti, R. M. P. Neves +3
The first inflationary model conceived was the one proposed by Starobinsky which includes an additional term quadratic in the Ricci-scalar R in the Einstein-Hilbert action. The mod…
Probing the Seesaw Mechanism with Cosmological Data
J. G. Rodrigues, Micol Benetti, Marcela Campista +1
We investigate cosmological consequences of an inflationary model which incorporates a generic seesaw extension (types I and II) of the Standard Model of Particle Physics. A non-mi…