Collapsing dynamics of relativistic fluid in modified gravity admitting a conformal Killing vector

Autor:	Kazuharu Bamba, Z. Yousaf, M. Z. Bhatti, R. Nazer, Yuki Hashimoto
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Zdroj:	European Physical Journal C: Particles and Fields, Vol 83, Iss 8, Pp 1-20 (2023)
Druh dokumentu:	article
ISSN:	1434-6052
DOI:	10.1140/epjc/s10052-023-11911-2
Popis:	Abstract The collapsing dynamics of relativistic fluid are explored in f(R) gravity in detailed systematic manner for the non-static spherically symmetric spacetime satisfying the equation of the conformal Killing vector. With quasi-homologous condition and diminishing complexity factor condition, exact solutions for dissipative as well as for non-dissipative system are found and the astrophysical applications of these exact solutions are discussed. Furthermore, it is demonstrated that $$f(R)=R,$$ f ( R ) = R , which is the extensive restriction of f(R) gravity, prior solutions of the collapsing fluid in general relativity, can be retrieved.
Databáze:	Directory of Open Access Journals
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