Testing the nature of dark compact objects: a status report

V Cardoso, P Pani - Living Reviews in Relativity, 2019 - Springer
Very compact objects probe extreme gravitational fields and may be the key to understand
outstanding puzzles in fundamental physics. These include the nature of dark matter, the …

Compact stars with dark matter induced anisotropy in complexity-free background and effect of dark matter on GW echoes

SK Maurya, KN Singh, A Aziz, S Ray… - Monthly Notices of the …, 2024 - academic.oup.com
In this work, we consider the vanishing complexity factor scenario which has opened up a
whole new way of generating solutions to the Einstein field equations for the spherically …

Anisotropic Karmarkar stars in f(RT)-gravity

M Rahaman, KN Singh, A Errehymy… - The European Physical …, 2020 - Springer
The main aim of this work is devoted to studying the existence of compact spherical systems
representing anisotropic matter distributions within the scenario of alternative theories of …

On gravitational echoes from ultracompact exotic stars

A Urbano, H Veermäe - Journal of Cosmology and Astroparticle …, 2019 - iopscience.iop.org
At the dawn of a golden age for gravitational wave astronomy, we must leave no stone
unturned in our quest for new phenomena beyond our current understanding of General …

Rescaling strange-cluster stars and its implications on gravitational-wave echoes

C Zhang, Y Gao, CJ Xia, R Xu - Physical Review D, 2023 - APS
Solid states of strange-cluster matter called strangeon matter can form strangeon stars that
are highly compact. We show that strangeon matter and strangeon stars can be recast into …

Constraining values of bag constant for strange star candidates

A Aziz, S Ray, F Rahaman, M Khlopov… - International Journal of …, 2019 - World Scientific
We provide a strange star model under the framework of general relativity by using a
general linear equation of state (EOS). The solution set thus obtained is employed on …

Strange stars in f (ℛ) gravity palatini formalism and gravitational wave echoes from them

J Bora, DJ Gogoi, UD Goswami - Journal of Cosmology and …, 2022 - iopscience.iop.org
The compact stars are promising candidates associated with the generation of gravitational
waves (GWs). In this work, we study a special type of compact stars known as strange stars …

On gravitational-wave echoes from neutron-star binary coalescences

P Pani, V Ferrari - Classical and Quantum Gravity, 2018 - iopscience.iop.org
A tentative detection of gravitational-wave echoes in the post-merger signal of GW170817
has been recently claimed at significance level. It has been speculated that the signal might …

Compact elastic objects in general relativity

A Alho, J Natário, P Pani, G Raposo - Physical Review D, 2022 - APS
We introduce a rigorous and general framework to study systematically self-gravitating
elastic materials within general relativity, and apply it to investigate the existence and …

Gravitational wave echoes from interacting quark stars

C Zhang - Physical Review D, 2021 - APS
We show that interacting quark stars (IQSs) composed of interacting quark matter (IQM),
including the strong interaction effects such as perturbative QCD corrections and color …