299 citations · 462 across the 24 of their papers we have counts for
24 papers
Modified Gravity from growth data: goodness-of-fit and gravitational coupling
Manoel V. S. Filho, Fernanda Oliveira, Wiliam S. Hipólito-Ricaldi +2
While background expansion data alone cannot discriminate among cosmological models, the growth of large-scale structures directly probes the underlying theory of gravity, offering…
First tomographic measurements of the angular clustering and bias of photometric quasars from S-PLUS
Maria Lopes, Felipe Avila, Armando Bernui +1
We investigate the quasar clustering in the QuCatS photometric catalog, constructed from the fourth data release of the Southern Photometric Local Universe Survey (S-PLUS). The qua…
Testing Scale-Dependent Suppression of Structure Growth in the Linear Regime
Fernanda Oliveira, Miguel A. Sabogal, Felipe Avila +2
We investigate recent reports of a suppression in the growth rate of cosmic structures inferred from analyses of the dataset. To address this issue, we explore the hypo…
Homogeneity scale in the local Universe: Model-independent estimate from S-PLUS iDR6 blue galaxies
Camila Franco, Felipe Avila, Armando Bernui +8
We present a model-independent estimate of the angular homogeneity scale in the local Universe by analysing data from the Southern Photometric Local Universe Survey (S-PLUS). Two c…
Accessing the homogeneity scale with 21 cm intensity mapping surveys
Bruno B. Bizarria, Camila P. Novaes, Felipe Avila +4
The homogeneity scale, , offers a fundamental test of the Cosmological Principle, yet it has not yet been measured with 21cm intensity mapping surveys. A key limitation…
Updated Cosmological Constraints from 2D BAO Measurements: A New Compilation and Comparison with DESI DR2
Miguel A. Sabogal, Rafael C. Nunes, Felipe Avila +1
We investigate and update observational constraints on cosmological parameters within the CDM and dynamical dark energy frameworks, using a new compilation of the transverse (or…
High-redshift transverse BAO measurements with the SDSS quasar catalog
Felipe Avila, Armando Bernui, Miguel A. Sabogal +1
Transverse Baryon Acoustic Oscillation (BAO) measurements offer a robust geometric probe of the Universe expansion, presenting minimal dependence on fiducial cosmological models. I…
Probing the Cosmic Distance Duality Relation via Non-Parametric Reconstruction for High Redshifts
Felipe Avila, Fernanda Oliveira, Camila Franco +4
We test the validity of the cosmic distance duality relation (CDDR) by combining angular diameter distance and luminosity distance measurements from recent cosmological observation…
Is CDM a good model for the clumpy Universe?
Fernanda Oliveira, Felipe Avila, Camila Franco +1
The DESI collaboration just obtained a set of precise BAO measurements, that combined with CMB and SNIa datasets show that the CDM model is preferred over CDM, at more…
Revisiting the temperature evolution law of the CMB with gaussian processes
Felipe Avila, Alexander Bonilla Rivera, Rafael C. Nunes +2
In this work, we perform a statistical inference of the classical background law governing the evolution of the temperature of the cosmic microwave background radiation (CMB), give…
Viability of general relativity and modified gravity cosmologies using high-redshift cosmic probes
Fernanda Oliveira, Bruno Ribeiro, Wiliam S. Hipólito-Ricaldi +2
Several models based on General Relativity and Modified Gravity aim to reproduce the observed universe with precision comparable to the flat-CDM cosmological model. In this stud…
TDCOSMO XVII. New time delays in 22 lensed quasars from optical monitoring with the ESO-VST 2.6m and MPG 2.2m telescopes
Frédéric Dux, Martin Millon, Aymeric Galan +29
We present new time delays, the main ingredient of time delay cosmography, for 22 lensed quasars resulting from high-cadence r-band monitoring on the 2.6 m ESO VLT Survey Telescope…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Probing cosmic isotropy: Hubble constant and matter density large-angle variations with the Pantheon+SH0ES data
Rahima Mokeddem, Maria Lopes, Felipe Avila +2
In this study we investigate potential large-angle anisotropies in the angular distribution of the cosmological parameters (the Hubble constant) and (the matter density…
Probing large-scale structures with the two-point function and the power spectrum: insights into cosmic clustering evolution
Camila Franco, Felipe Avila, Armando Bernui
Understanding the large-scale structure of the Universe requires analyses of cosmic clustering and its evolution over time. In this work, we investigate the clustering properties o…
Dipolar fluence distribution of statistically isotropic FERMI gamma-ray bursts
Maria Lopes, Armando Bernui, Wiliam S. Hipólito-Ricaldi +2
We investigated the large-angle distribution of the gamma-ray bursts (GRBs) from the updated FERMI/GBM catalog to probe the statistical isotropy of these astrophysical transient ev…
Measuring the matter fluctuations in the Local Universe with the ALFALFA catalog
Camila Franco, Jezebel Oliveira, Maria Lopes +2
The standard model of cosmology describes the matter fluctuations through the matter power spectrum, where , defined at the scale of $8 h^…
Bulk Flow Motion Detection in the Local Universe with Pantheon Type Ia Supernovae
Maria Lopes, Armando Bernui, Camila Franco +1
The {\em bulk flow} in the Local Universe is a collective phenomenon due to the peculiar motions of matter structures, which, instead of moving in random directions, appears to fol…
Baryon acoustic scale at $z_{\eff} = 0.166$ with the SDSS blue galaxies
Felipe Avila, Edilson de Carvalho, Armando Bernui +2
The Baryon Acoustic Oscillations (BAO) phenomenon provides a unique opportunity to establish a standard ruler at any epoch in the history of the evolving universe. The key lies in…
Probing cosmic isotropy in the Local Universe
Camila Franco, Felipe Avila, Armando Bernui
This is a model-independent analysis that investigates the statistical isotropy in the Local Universe using the ALFALFA survey data (). We investigate the angular dis…
Reconstructing the growth index with Gaussian Processes
Fernanda Oliveira, Felipe Avila, Armando Bernui +2
Alternative cosmological models have been proposed to alleviate the tensions reported in the concordance cosmological model, or to explain the current accelerated phase of the univ…
Probing cosmic homogeneity in the Local Universe
Bruno L. Dias, Felipe Avila, Armando Bernui
We investigate the transition scale to homogeneity, , using as cosmic tracer the spectroscopic sample of blue galaxies from the Sloan Digital Sky Survey (SDSS). Considering th…
The bulk flow motion and the Hubble-Lema\^ıtre law in the Local Universe with the ALFALFA survey
Felipe Avila, Jezebel Oliveira, Mariana L. S. Dias +1
The knowledge of the main features of the bulk flow in the Local Universe is important for a better determination of the relative motions there, an information that would contribut…
Inferring and with cosmic growth rate measurements using machine learning
Felipe Avila, Armando Bernui, Alexander Bonilla +1
Measurements of the cosmological parameter provided by cosmic microwave background and large scale structure data reveal some tension between them, suggesting that the cluste…