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Mass-radius relation of compact objects

Published online by Cambridge University Press:  29 January 2021

Seman Abaraya  and
Tolu Biressa
Seman Abaraya
Affiliation:
Department of Physics, Astronomy and Space Science Stream, Jimma University, Jimma, Ethiopia emails: semanabaraya06@gmail.com; tolu_biressa@yahoo.com
Tolu Biressa
Affiliation:
Department of Physics, Astronomy and Space Science Stream, Jimma University, Jimma, Ethiopia emails: semanabaraya06@gmail.com; tolu_biressa@yahoo.com
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Abstract

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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.

Keywords

Compact objectsmass limitequation of statemass-radius relation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S356: Nuclear Activity in Galaxies Across Cosmic Time , October 2019 , pp. 383 - 384
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

References

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