Neutron stars and quark stars are ideal laboratories to study fundamental physics at supra
nuclear densities and strong gravitational fields. Astrophysical observables, however …

As the luminosity of an accreting black hole drops to a few percent of Eddington, the
spectrum switches from the familiar soft state to a hard state that is well-described by a …

Observations have found black holes spanning 10 orders of magnitude in mass across most
of cosmic history. The Kerr black hole solution is, however, provisional as its behavior at …

We propose a unique stellar model under the f (R, T) gravity by using the conjecture of
Mazur-Mottola [P. Mazur and E. Mottola, Report No. LA-UR-01-5067, P. Mazur and E …

The LIGO observation of gravitational waves from a binary black hole merger has begun a
new era in fundamental physics. If new dark sector particles, be they bosons or fermions …

Abstract The Einstein–Maxwell (or Einstein) system of field equations plays a substantial
role in the modeling of compact stars. Although due to its non-linearity getting an exact …

Standard models of “regular black holes” typically have asymptotically de Sitter regions at
their cores. Herein, we shall consider novel “hollow” regular black holes, those with …

A new final endpoint of complete gravitational collapse is proposed. By extending the
concept of Bose–Einstein condensation to gravitational systems, a static, spherically …

This paper examines the viable attributes of charged compact stars with anisotropic matter
configuration in f (R, T 2) f(R,T^2) theory. For this purpose, we use the embedding class‐1 …

Recently, a modified theory of gravity was presented, which consists of the superposition of
the metric Einstein-Hilbert Lagrangian with an f (R) term constructed à la Palatini. The theory …