299 citations · 331 across the 8 of their papers we have counts for
8 papers · 1 filter
Near universality of nonlinear transverse and radial velocity responses in spherical collapse with arbitrary radial profiles
Valerio Marra
The nonlinear relation between density and expansion is usually formulated for a homogeneous spherical top hat, which has a single local Hubble rate. A smooth spherical profile ins…
Tensions in Cosmology: Interpreting Them Through Inhomogeneous Models
Valerio Marra
We review a subset of the current tensions affecting the standard CDM cosmological model, emphasizing the role of chronic systematics and significance inflation in shaping their…
Accurate cosmological emulator for the probability distribution function of gravitational lensing of point sources
Tunç Türker, Valerio Marra, Tiago Castro +2
We develop an accurate and computationally efficient emulator to model the gravitational lensing magnification probability distribution function (PDF), enabling robust cosmological…
BAO miscalibration cannot rescue late-time solutions to the Hubble tension
Davide Pedrotti, Luis A. Escamilla, Valerio Marra +2
Baryon Acoustic Oscillation (BAO) measurements play a key role in ruling out post-recombination solutions to the Hubble tension. However, because the data compression leading to th…
DUCA: Dynamic Universe Cosmological Analysis. II. The impact of clustering dark energy on the halo mass function
Tiago Castro, Stefano Borgani, Jeppe Dakin +3
Galaxy clusters are powerful probes of cosmology, and the halo mass function (HMF) serves as a fundamental tool for extracting cosmological information. Previous calibrations of th…
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.…
Redshift Drift fluctuations from N-body simulations
Pedro Bessa, Valerio Marra, Tiago Castro
Measurements of the redshift drift -- the real time variation of the redshift of distance sources -- are expected in the next couple of decades using next generation facilities suc…
A deconstruction of methods to derive one-point lensing statistics
Viviane Alfradique, Tiago Castro, Valerio Marra +3
Gravitational lensing is a crucial tool for exploring cosmic phenomena, providing insights into galaxy clustering, dark matter, and dark energy. Given the substantial computational…