Relativistic compact stars with dark matter density profile

被引：20

作者：

Sarkar, Nayan ^{[1
]}

Sarkar, Susmita ^{[1
]}

Singh, Ksh Newton ^{[1
,2
]}

Rahaman, Farook ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Math, Kolkata 700032, W Bengal, India

[2] Natl Def Acad, Dept Phys, Pune 411023, Maharashtra, India

来源：

EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 03期

关键词：

EQUATION-OF-STATE; NEUTRON-STARS; SPIRAL GALAXIES; CANDIDATES; INERTIA; MASS;

D O I：

10.1140/epjc/s10052-020-7803-3

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this article, we are proposing a model of anisotropic compact star possessing density profile of pseudo-isothermal dark matter satisfying a linear equation of state (EoS). The stellar system supported by this density profile is physically possible and in equilibrium fulfilling all the energy conditions including the TOV-equation. The solution also satisfies the causality condition, static stability criterion, Abreu's stability and Bondi's criteria. The fulfillment of Rhoades-Ruffini criterion makes our solution more physically viable as well. The M- R curve is plotted for b = 12.55 km and Bg = 60 MeV/fm(3).

引用

页数：13

共 57 条

[1] Sound speeds, cracking and the stability of self-gravitating anisotropic compact objects [J].

Abreu, H. ;

Hernandez, H. ;

Nunez, L. A. .

CLASSICAL AND QUANTUM GRAVITY, 2007, 24 (18) :4631-4645

[2] Indirect search for neutralino dark matter with high energy neutrinos [J].

Barger, V ;

Halzen, F ;

Hooper, D ;

Kao, C .

PHYSICAL REVIEW D, 2002, 65 (07) :750221-7502215

[3] Constraints on the dense matter equation of state from the measurements of PSR J0737-3039A moment of inertia and PSR J0751+1807 mass [J].

Bejger, M ;

Bulik, T ;

Haensel, P .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 364 (02) :635-639

[4] Moments of inertia for neutron and strange stars: Limits derived for the Crab pulsar [J].

Bejger, M ;

Haensel, P .

ASTRONOMY & ASTROPHYSICS, 2002, 396 (03) :917-921

[5] Chaplygin dark star -: art. no. 123512 [J].

Bertolami, O ;

Páramos, J .

PHYSICAL REVIEW D, 2005, 72 (12)

[6] Particle dark matter: evidence, candidates and constraints [J].

Bertone, G ;

Hooper, D ;

Silk, J .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2005, 405 (5-6) :279-390

[7] Compact stars as dark matter probes [J].

Bertone, Gianfranco ;

Fairbairn, Malcolm .

PHYSICAL REVIEW D, 2008, 77 (04)

[8] Relativistic anisotropic stellar models with Tolman VII spacetime [J].

Bhar, Piyali ;

Murad, Mohammad Hassan ;

Pant, Neeraj .

ASTROPHYSICS AND SPACE SCIENCE, 2015, 359 (01)

[9] Conversion of a neutron star to a strange star: A two-step process [J].

Bhattacharyya, Abhijit ;

Ghosh, Sanjay K. ;

Joarder, Partha S. ;

Mallick, Ritam ;

Raha, Sibaji .

PHYSICAL REVIEW C, 2006, 74 (06)

[10] COLLAPSED NUCLEI [J].

BODMER, AR .

PHYSICAL REVIEW D, 1971, 4 (06) :1601-&

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