From the 1 of 7 linked papers with an AI index.
7 papers
Modified Cosmology from Mass-to-Horizon Relation: Observational Bounds
Pranav Prasanthan, Hussain Gohar, Vincenzo Salzano
We constrain the class of modified cosmologies derived in Paper I [1] from a generalized mass-to-horizon relation (MHR) that enforces thermodynamic consistency between the Cai-Kim…
Modified Cosmology from Mass-to-Horizon Relation: Background Evolution
Pranav Prasanthan, Hussain Gohar, Vincenzo Salzano
The paper derives modified Friedmann equations from a mass-to-horizon relation and shows that only very small deviations from the standard Bekenstein-Hawking entropy are compatible…
Is Chevallier-Polarski-Linder dark energy a mirage?
Mikel Artola, Ismael Ayuso, Ruth Lazkoz +1
Recent observations from the Dark Energy Spectroscopic Instrument (DESI) raise doubts about the standard cosmological model, CDM, suggesting a preference for an inherently dyna…
A Spectrum of Cosmological Rips and Their Observational Signatures
Mikel Artola, Ruth Lazkoz, Vincenzo Salzano
We present a unified dark energy framework capable of generating a continuous spectrum of cosmological ``rip'' scenarios -- including the Big Rip, Grand Rip, Mild Rip, Little Rip,…
Geometric acceleration in theories
Mikel Artola, Ismael Ayuso, Ruth Lazkoz +2
The framework of gravity enables the depiction of an effective dark energy fluid that emerges from geometry itself, thus leading to modifications in the cosmological pheno…
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.…