Effect of Einasto spike on the gravitationally decoupled self-gravitating dark matter halos

被引：0

作者：

Yousaf, Z. ^{[1
]}

Ganesan, T. ^{[2
]}

Almutairi, Bander ^{[3
]}

Bhatti, M.Z. ^{[1
]}

Khan, S. ^{[1
]}

机构：

[1] Department of Mathematics, University of the Punjab, Lahore,54590, Pakistan

[2] Department of Physics and Astronomy, University of Calgary, Calgary,AB, Canada

[3] Department of Mathematics, College of Science, King Saud University, PO Box 2455, Riyadh,11451, Saudi Arabia

来源：

Physica Scripta | 2024年 / 99卷 / 12期

关键词：

In this work; we consider the possibility of constructing gravitationally bound; charged dark matter halos motivated by Einasto density model. This model generalizes the concept of charged; non-commutative mini-compact objects by including dark matter as its primary component through the principles of the minimal geometric deformation strategy. We point out that the coupling of the non-commutativity inspired Einasto spike density model with a non-isotropic fluid; within the context of gravitational decoupling allows the formation of different minimally deformed dark matter halos; corresponding to each value of the deformation parameter. We assume the Tolman-Kuchowicz cosmological model as a seed metric within the geometric deformation scheme to initially generate an electrically charged isotropic solution. Subsequently; we employ a density-like constraint to produce a second anisotropic charged dark matter stellar model via the Einasto density profile. A complete graphical analysis of the structural variables and stability of both models indicate that; for the considered choice of parameters; both cosmological models are well-behaved; exhibiting expected physical behavior. © 2024 IOP Publishing Ltd. All rights; including for text and data mining; AI training; and similar technologies; are reserved;

D O I：

10.1088/1402-4896/ad8aa5

中图分类号：

学科分类号：

摘要：

引用

下载

共 50 条

[41] On the Properties of the Geometry of Spacetime for Distributions of Self-Gravitating Extreme Matter
V. G. Krechet
V. B. Oshurko
S. V. Rodichev
Russian Physics Journal, 2017, 59 : 1357 - 1366
[42] RELAXATION OF COLLISIONLESS SELF-GRAVITATING MATTER - THE FINAL-STATE
ZIEGLER, HJ
WIECHEN, H
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1989, 238 (03) : 1261 - 1280
[43] STABILITY AGAINST PHASE MIXING OF COLLISIONLESS SELF-GRAVITATING MATTER
HJORTH, J
ASTROPHYSICAL JOURNAL, 1994, 424 (01): : 106 - 113
[44] Dynamics of collision-less self-gravitating systems and dark turbulence
Morikawa, Masahiro
DYNAMICS AND THERMODYNAMICS OF SYSTEMS WITH LONG-RANGE INTERACTIONS: THEORY AND EXPERIMENTS, 2008, 970 : 269 - +
[45] On the statistical theory of self-gravitating collisionless dark matter flow: Scale and redshift variation of velocity and density distributions
Xu, Zhijie
Physics of Fluids, 2024, 36 (11)
[46] VISCOUS EVOLUTION OF SELF-GRAVITATING GALACTIC DISKS WITHIN A DARK HALO
SAIO, H
YOSHII, Y
ASTROPHYSICAL JOURNAL, 1990, 363 (01): : 40 - 49
[47] A self-gravitating system composed of baryonic and dark matter analysed from the post-Newtonian Boltzmann equations
Gilberto M. Kremer
Kamel Ourabah
The European Physical Journal C, 83
[48] A self-gravitating system composed of baryonic and dark matter analysed from the post-Newtonian Boltzmann equations
Kremer, Gilberto M.
Ourabah, Kamel
EUROPEAN PHYSICAL JOURNAL C, 2023, 83 (09):
[49] Effect of early dark matter halos on reionization
Natarajan, Aravind
Schwarz, Dominik J.
PHYSICAL REVIEW D, 2008, 78 (10):
[50] Self-interacting cold dark matter halos
Burkert, A
DARK MATTER IN ASTRO- AND PARTICLE PHYSICS, 2001, : 89 - 93

← 1 2 3 4 5 →