Quasi-homologous evolution of self-gravitating systems with vanishing complexity factor

Autor:	L. Herrera, A. Di Prisco, J. Ospino
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Zdroj:	European Physical Journal C: Particles and Fields, Vol 80, Iss 7, Pp 1-14 (2020)
Druh dokumentu:	article
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-020-8202-5
Popis:	Abstract We investigate the evolution of self-gravitating either dissipative or non-dissipative systems satisfying the condition of minimal complexity, and whose areal radius velocity is proportional to the areal radius (quasi-homologous condition). Several exact analytical models are found under the above mentioned conditions. Some of the presented models describe the evolution of spherically symmetric dissipative fluid distributions whose center is surrounded by a cavity. Some of them satisfy the Darmois conditions whereas others present shells and must satisfy the Israel condition on either one or both boundary surfaces. Prospective applications of some of these models to astrophysical scenarios are discussed.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a13192d0f8b04334a279f1069a45f8c2 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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