Mass-radius relation of compact objects. Issue Volume 15:Issue S356(2019) (October 2019)

• Record Type: Journal Article
• Authors: Abaraya, Seman; Biressa, Tolu
• Editors: Pović, Mirjana; Marziani, Paola; Masegosa, Josefa; Netzer, Hagai; Negu, Seblu H.; Tessema, Solomon B.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S356(2019)
• Page Start: 383
• Page End: 384
• Publication Date: 2019-10
• Subjects: Compact objects, -- mass limit, -- equation of state, -- mass-radius relation; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320003506
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Compact objects are of great interest in astrophysical research. There are active research interests in understanding better various aspects of formation and evolution of these objects. In this paper we addressed some problems related to the compact objects mass limit. We employed Einstein field equations (EFEs) to derive the equation of state (EoS). With the assumption of high densities and low temperature of compact sources, the derived equation of state is reduced to polytropic kind. Studying the polytropic equations we obtained similar physical implications, in agreement to previous works. Using the latest version of Mathematica-11 in our numerical analysis, we also obtained similar results except slight differences in accuracy.