Structure and evolution of self-gravitating objects and the orthogonal splitting<? format?> of the Riemann tensor

L Herrera, J Ospino, A Di Prisco, E Fuenmayor… - Physical Review D …, 2009 - APS
The full set of equations governing the structure and the evolution of self-gravitating
spherically symmetric dissipative fluids with anisotropic stresses is written down in terms of …

Electromagnetic effects on anisotropic expansion-free fluid content

Z Yousaf, H Asad, B Almutairi… - … in Theoretical Physics, 2023 - iopscience.iop.org
The major goal of this work is to find solutions of Einstein–Maxwell field equations for
anisotropic, expansion-free, non-static, spherically distributed matter content. The analytical …

Shearing expansion-free spherical anisotropic fluid evolution

L Herrera, NO Santos, A Wang - … Review D—Particles, Fields, Gravitation, and …, 2008 - APS
Spherically symmetric expansion-free distributions are systematically studied. The entire set
of field equations and junction conditions are presented for a general distribution of …

Interacting quark star with pressure anisotropy and recent astrophysical observations

T Tangphati, İ Sakallı, A Banerjee, A Ali - Chinese Journal of Physics, 2024 - Elsevier
This paper investigates the internal structure and equation of state (EoS) of quark stars (QS)
with pressure anisotropy, incorporating recent astrophysical observations. Utilizing …

Interior solutions of relativistic stars with anisotropic matter in scale-dependent gravity

G Panotopoulos, Á Rincón, I Lopes - The European Physical Journal C, 2021 - Springer
We obtain well behaved interior solutions describing hydrostatic equilibrium of anisotropic
relativistic stars in scale-dependent gravity, where Newton's constant is allowed to vary with …

Physical causes of energy density inhomogenization and stability of energy density homogeneity in relativistic self-gravitating fluids

L Herrera - International Journal of Modern Physics D, 2011 - World Scientific
We identify the factors responsible for the appearance of energy density inhomogeneities in
a self-gravitating fluid, and describe the evolution of those factors from an initially …

Dynamics of viscous dissipative gravitational collapse: a full causal approach

L Herrera, A Di Prisco, E Fuenmayor… - International Journal of …, 2009 - World Scientific
The Misner and Sharp approach to the study of gravitational collapse is extended to the
viscous dissipative case in both the streaming out and the diffusion approximations. The …

Dissipative collapse of a Karmarkar star

M Govender, A Maharaj, KN Singh… - Modern Physics Letters …, 2020 - World Scientific
In this paper, we employ the Karmarkar condition to model a spherically symmetric radiating
star undergoing dissipative gravitational collapse within the framework of classical general …

Radiating star with a time-dependent Karmarkar condition

NF Naidu, M Govender, SD Maharaj - The European Physical Journal C, 2018 - Springer
In this paper we employ the Karmarkar condition (Proc Indian Acad Sci A 27: 56, 1948) to
model a spherically symmetric radiating star undergoing dissipative gravitational collapse in …

Lemaitre-Tolman-Bondi dust spacetimes: Symmetry properties and some extensions to the dissipative case

L Herrera, A Di Prisco, J Ospino, J Carot - Physical Review D—Particles, Fields …, 2010 - APS
We consider extensions of Lemaitre-Tolman-Bondi (LTB) spacetimes to the dissipative case.
We have previously carried out a systematic study on LTB. This study is based on two …