88 citations · 523 across the 35 of their papers we have counts for
11 papers · 1 filter
A model-independent assessment of the late-time dark energy density evolution
Rayff de Souza, Agripino Sousa-Neto, Javier E. González +1
Combined measurements of Baryon Acoustic Oscillations (BAO) from the Dark Energy Spectroscopic Survey (DESI), the Cosmic Microwave Background (CMB) and Type Ia Supernovae (SN Ia),…
Exploring cosmological constraints on galaxy formation time
Agripino Sousa-Neto, Maria Aldinêz Dantas, Javier E. González +2
The Universe consists of a variety of objects that formed at different epochs, leading to variations in the formation time which represents the time elapsed from the onset of struc…
Forecasting constraints on quintessential inflation from future generation of galaxy and CMB surveys
G. Rodrigues, F. B. M. dos Santos, S. Santos da Costa +5
We investigate the constraining power of future CMB and galaxy surveys on models of quintessential inflation realized within the framework of -attractors. We analyze how these f…
Cosmography with DESI DR2 and SN data
Gabriel Rodrigues, Rayff de Souza, Jailson Alcaniz
In this paper, we present a kinematic analysis of the Universe's expansion history using cosmography, with a particular emphasis on the jerk parameter , which is equal to one…
Revisiting the CMB homogeneity scale: low multipoles removal effect and extragalactic foreground masking
Xiaoyun Shao, Facundo Toscano, Diego Garcia Lambas +5
The Cosmic Microwave Background (CMB) reaches homogeneity at relatively modest angular scales compared to the expectation of the standard CDM model revealing an important challe…
Cosmological-model independent limits on photon mass from FRB and SNe data
Thais Lemos, Rodrigo Gonçalves, Joel Carvalho +1
Electromagnetic emissions from astrophysical sources at cosmological distances can be used to estimate the photon mass, . In this paper, we combine measurements of the dispers…
Thawing quintessence and transient cosmic acceleration in light of DESI
Rayff de Souza, Gabriel Rodrigues, Jailson Alcaniz
Recent analysis of the DESI Collaboration challenges the -Cold Dark Matter (CDM) model, suggesting evidence for a dynamic dark energy. These results are obtained in the conte…
Reconstructing the redshift evolution of Type Ia supernovae absolute magnitude
Rodrigo von Marttens, Javier Gonzalez, Jailson Alcaniz
This work investigates a potential time dependence of the absolute magnitude of Type Ia Supernovae (SN Ia). Employing the Gaussian Process approach, we obtain the SN Ia absolute ma…
Hubble tension and small-scale inhomogeneities on light propagation
Lucila Kraiselburd, Cassio Pigozzo, Susana J. Landau +1
Context. A major observational challenge within the standard cosmological framework is the Hubble tension, a statistically significant () disagreement between the Hubble c…
Thawing Dark Energy and Massive Neutrinos in Light of DESI
Gabriel Rodrigues, Rayff de Souza, Jamerson Rodrigues +1
Recent analyses have shown that a dynamic dark energy modeled by the CPL parameterization of the dark energy equation of state (EoS) can ease constraints on the total neutrino mass…
Evidence for dynamical dark energy from DESI-DR2 and SN data? A symbolic regression analysis
Agripino Sousa-Neto, Carlos Bengaly, Javier E. Gonzalez +1
Recent measurements of Baryon Acoustic Oscillations (BAO) from the Dark Energy Spectroscopic Survey (DESI DR2), combined with data from the cosmic microwave background (CMB) and Ty…