Research PaperNo Access

Double dark matter admixed neutron star

Zeinab Rezaei

Zeinab Rezaei

Department of Physics, Shiraz University, Shiraz 71454, Iran

Biruni Observatory, Shiraz University, Shiraz 71454, Iran

E-mail Address: zrezaei@shirazu.ac.ir

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https://doi.org/10.1142/S0218271819500020Cited by:18 (Source: Crossref)

Abstract

The dark matter (DM) in neutron stars can exist from the lifetime of the progenitor or when captured by this compact object. The properties of DM that enter the neutron stars through each step could be different from each other. Here, we investigate the structure of neutron stars which are influenced by the DM in two processes. Applying a generalization of two-fluid formalism to three-fluid one and the equation-of-state from the rotational curves of galaxies, we explore the structure of double DM admixed neutron stars. The behavior of the neutron and DM portions for these stars is considered. In addition, the influence of the DM equations of state on the stars with different contributions of visible and DM are studied. The gravitational redshift of these stars in different cases of DM equations of state is investigated.

Keywords:

PACS: 97.60.Jd, 95.35.

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