Core-envelope model of super dense star with distinct equation of states

R. P. Pant, Satyanarayana Gedela, Ravindra K. Bisht, Neeraj Pant

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

The aim of the present paper is to study an anisotropic spherically symmetric core-envelope model of a super dense star in which core is equipped with linear equation of state, consistent with the quark matter while the envelope is considered to be of quadratic equation of state by adopting the philosophy of Takisa et al. (Pramana J Phys 92:40, 2019). We demonstrate that all the physical parameters are realistic within the core as well as envelope of the stellar object and continuous at the junction. Our model is shown to be physically viable and substantiate with the strange stars SAX J1808.4-3658 and 4U1608-52. Further, We infer that if the mass of the star increases then central density results to higher values and core shrinks, which justifies the dominating effect of gravity for higher mass celestial objects.

Original languageEnglish
Article number602
JournalEuropean Physical Journal C
Volume79
Issue number7
DOIs
Publication statusPublished - 1 Jul 2019
Externally publishedYes

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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