Dynamics of Hyperbolically Symmetric Fluids

Autor: Luis Herrera, Alicia Di Prisco, Justo Ospino
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Symmetry, Vol 13, Iss 9, p 1568 (2021)
Druh dokumentu: article
ISSN: 2073-8994
DOI: 10.3390/sym13091568
Popis: We study the general properties of dissipative fluid distributions endowed with hyperbolical symmetry. Their physical properties are analyzed in detail. It is shown that the energy density is necessarily negative, and the central region cannot be attained by any fluid element. We describe this inner region by a vacuum cavity around the center. By assuming a causal transport equation some interesting thermodynamical properties of these fluids are found. Several exact analytical solutions, which evolve in the quasi–homologous regime and satisfy the vanishing complexity factor condition, are exhibited.
Databáze: Directory of Open Access Journals
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