Testing general relativity with present and future astrophysical observations

E Berti, E Barausse, V Cardoso… - … and Quantum Gravity, 2015 - iopscience.iop.org
One century after its formulation, Einstein's general relativity (GR) has made remarkable
predictions and turned out to be compatible with all experimental tests. Most of these tests …

Stellar structure models in modified theories of gravity: Lessons and challenges

GJ Olmo, D Rubiera-Garcia, A Wojnar - Physics Reports, 2020 - Elsevier
The understanding of stellar structure represents the crossroads of our theories of the
nuclear force and the gravitational interaction under the most extreme conditions observably …

Modified gravity and cosmology

EN Saridakis, R Lazkoz, V Salzano, PV Moniz… - 2021 - Springer
The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

[HTML][HTML] Causal limit of neutron star maximum mass in f (R) gravity in view of GW190814

AV Astashenok, S Capozziello, SD Odintsov… - Physics Letters B, 2021 - Elsevier
We investigate the causal limit of maximum mass for stars in the framework of f (R) gravity.
We choose a causal equation of state, with variable speed of sound, and with the transition …

Approximate universal relations for neutron stars and quark stars

K Yagi, N Yunes - Physics Reports, 2017 - Elsevier
Neutron stars and quark stars are ideal laboratories to study fundamental physics at supra
nuclear densities and strong gravitational fields. Astrophysical observables, however …

[HTML][HTML] Anisotropic compact stars in f (R) gravity

GGL Nashed, S Capozziello - The European Physical Journal C, 2021 - Springer
We derive a new interior solution for stellar compact objects in\(f\mathcal {(R)}\) gravity
assuming a differential relation to constrain the Ricci curvature scalar. To this aim, we …

Mass-radius relation for neutron stars in gravity

S Capozziello, M De Laurentis, R Farinelli… - Physical Review D, 2016 - APS
We discuss the mass-radius diagram for static neutron star models obtained by the
numerical solution of modified Tolman-Oppenheimer-Volkoff equations in f (R) gravity where …

Extreme neutron stars from extended theories of gravity

AV Astashenok, S Capozziello… - Journal of Cosmology …, 2015 - iopscience.iop.org
We discuss neutron stars with strong magnetic mean fields in the framework of Extended
Theories of Gravity. In particular, we take into account models derived from f (R) and f (Script …

Rotating stars in relativity

V Paschalidis, N Stergioulas - Living Reviews in Relativity, 2017 - Springer
Rotating relativistic stars have been studied extensively in recent years, both theoretically
and observationally, because of the information they might yield about the equation of state …

[HTML][HTML] Nonperturbative models of quark stars in f (R) gravity

AV Astashenok, S Capozziello, SD Odintsov - Physics Letters B, 2015 - Elsevier
Quark star models with realistic equation of state in nonperturbative f (R) gravity are
considered. The mass-radius relation for f (R)= R+ α R 2 model is obtained. Considering …