7 papers
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…
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 thei…
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…
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…
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.…