Rp attractors static neutron star phenomenology

VK Oikonomou - Monthly Notices of the Royal Astronomical …, 2023 - academic.oup.com
In this work, we study the neutron star phenomenology of R p attractor theories in the
Einstein frame. The Einstein frame R p attractor theories have the attractor property that they …

Inflationary attractors predictions for static neutron stars in the mass-gap region

SD Odintsov, VK Oikonomou - Physical Review D, 2023 - APS
In this work we study static neutron stars in the context of several inflationary models which
are popular in cosmology. These inflationary models are nonminimally coupled scalar …

Static neutron stars perspective of quadratic and induced inflationary attractor scalar-tensor theories

VK Oikonomou - Classical and Quantum Gravity, 2023 - iopscience.iop.org
This study focuses on the static neutron star perspective for two types of cosmological
inflationary attractor theories, namely the induced inflationary attractors and the quadratic …

Neutron stars phenomenology with scalar–tensor inflationary attractors

SD Odintsov, VK Oikonomou - Physics of the Dark Universe, 2021 - Elsevier
In this work we shall study the implications of a subclass of E-models cosmological
attractors, namely of a-attractors, on hydrodynamically stable slowly rotating neutron stars …

Universal inflationary attractors implications on static neutron stars

VK Oikonomou - Classical and Quantum Gravity, 2021 - iopscience.iop.org
We study static neutron stars in the context of a class of non-minimally coupled inflationary
potentials, the universal attractors. Universal attractors are known to generate a viable …

Gauss–Bonnet Inflation after Planck2018

N Rashidi, K Nozari - The Astrophysical Journal, 2020 - iopscience.iop.org
We study the primordial perturbations and reheating process in the models where the Gauss–
Bonnet (GB) term is nonminimally coupled to the canonical and noncanonical (DBI and …

Generalized -attractor cosmology in the Jordan and Einstein frames: New type of attractors and revisiting standard Jordan frame inflation

SD Odintsov, VK Oikonomou - International Journal of Modern …, 2023 - World Scientific
In this work, we study a new class of attractor models which we shall call generalized R p-
attractor models. This class of models is based on a generalization of the Einstein frame …

Some aspects of the Tachyon inflation with superpotential in confrontation with Planck2018 data

N Rashidi - The Astrophysical Journal, 2021 - iopscience.iop.org
We study tachyon inflation in the presence of the superpotential as an inflationary potential.
We study the primordial perturbations and their non-Gaussian feature in the equilateral …

Mimetic DBI inflation in confrontation with Planck2018 data

K Nozari, N Rashidi - The Astrophysical Journal, 2019 - iopscience.iop.org
We study mimetic gravity in the presence of a Dirac–Born–Infeld (DBI)-like term, which is a
non-canonical setup of the scalar field's derivatives. We consider two general cases with …

Inflation in energy-momentum squared gravity in light of Planck2018

M Faraji, N Rashidi, K Nozari - The European Physical Journal Plus, 2022 - Springer
We study cosmological dynamics of the energy-momentum squared gravity. By adding the
squared of the matter field's energy-momentum tensor (ζ T 2) to the Einstein–Hilbert action …