6 papers
General Relativistic Entropic Acceleration at the perturbation level: a CLASS implementation and first Boltzmann-code constraints
Simone D'Onofrio, Dong Ha Lee, Eleonora Di Valentino +1
General Relativistic Entropic Acceleration (GREA) attributes the late-time acceleration of the Universe to the entropy growth of the causal cosmological horizon, without a cosmolog…
Exponential cosmology with massive neutrinos as a dynamical dark energy framework
Simone D'Onofrio, Sergei Odintsov, Tiziano Schiavone
The exponential gravity model provides a theoretically well-motivated extension of General Relativity, introducing a modified gravitational dynamics at late times consistent…
Axial tidal Love numbers of black holes in matter environments
Simone D'Onofrio, Sayak Datta, Andrea Maselli
We study the axial (magnetic) tidal Love numbers of a Schwarzschild black hole surrounded by a spherically symmetric matter distribution. While the formalism developed here is gene…
Fitting NANOGrav 15-year data and ACT data with modified inflation in entropic cosmology
Simone D'Onofrio, Sergei Odintsov, Tanmoy Paul
Recent evidences of stochastic gravitational wave background (SGWB) through Pulsar Time Array (PTA) observations hint towards an alternative inflationary scenario, compared to the…
I-Love-Q relations for Neutron Stars with Dark Energy
Simone D'Onofrio
The influence of a dark energy fluid on the equation of state of neutron stars is investigated. A detailed analysis is conducted for such models, including the computation of the m…
Generalized entropic dark energy with spatial curvature
Sergei D. Odintsov, Simone D'Onofrio, Tanmoy Paul
In the realm of thermodynamics of apparent horizon, we construct a dark energy (DE) model from 4-parameter generalized entropy of apparent horizon in a spatially non-flat universe.…