[HTML][HTML] Effects of modified gravity on microscopic properties and cooling timescale of white dwarfs

A Wojnar, S Kalita, L Sarmah - Physics Letters B, 2024 - Elsevier
There are currently two open questions in white dwarf physics: why are massive dwarfs
observed less often in astronomical surveys, and why have not any super-Chandrasekhar …

Inflation and reheating in quadratic metric-affine gravity with derivative couplings

ID Gialamas, T Katsoulas… - Journal of Cosmology and …, 2024 - iopscience.iop.org
Within the framework of metric-affine theories of gravity, where both the metric and
connection are treated as independent variables, we consider actions quadratic in the Ricci …

Global portraits of nonminimal inflation: Metric and Palatini formalism

L Järv, S Karamitsos, M Saal - Physical Review D, 2024 - APS
In this paper, we study the global phase space dynamics of single nonminimally coupled
scalar field inflation models in the metric and Palatini formalisms. Working in the Jordan …

Global Portraits of Nonminimal Inflation: Metric and Palatini

L Järv, S Karamitsos, M Saal - arxiv preprint arxiv:2401.12314, 2024 - arxiv.org
In this paper, we study the global phase space dynamics of single nonminimally coupled
scalar field inflation models in the metric and Palatini formalisms. Working in the Jordan …

Propagation and lensing of gravitational waves in Palatini gravity

S Harikumar, L Järv, M Saal, A Wojnar, M Biesiada - Physical Review D, 2024 - APS
Accelerated expansion of the Universe prompted searches of modified gravity theory
beyond general relativity, instead of adding a mysterious dark energy component with exotic …

Constraining extended teleparallel gravity via cosmography: A model-independent approach

SS Mishra, NS Kavya, PK Sahoo… - arxiv preprint arxiv …, 2024 - arxiv.org
As a classical approach, the dynamics of the Universe, influenced by its dark components,
are unveiled through prior modifications of Einstein's equations. Cosmography, on the other …

[HTML][HTML] Corrected Thermodynamics of Black Holes in f(R) Gravity with Electrodynamic Field and Cosmological Constant

M Xu, Y Zhang, L Yang, S Yang, J Lu - Entropy, 2024 - mdpi.com
The thermodynamics of black holes (BHs) and their corrections have become a hot topic in
the study of gravitational physics, with significant progress made in recent decades. In this …