Shear-free perfect fluids with a γ-law equation of state
Data(s) |
01/04/2015
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Resumo |
We investigate all shear-free perfect fluid solutions of the Einstein field equations where the pressure and energy density satisfy a (Formula presented.)-law equation of state with (Formula presented.). We prove that such a fluid is either non rotating or non expanding. As a consequence, it follows by combining our result with those of Collins and Wainwright that any such shear-free perfect fluid which models either an expand universe or a collapsing star must in fact be a Friedmann–Robertson–Walker spacetime. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Springer |
Relação |
http://dro.deakin.edu.au/eserv/DU:30082163/carminati-shearfreeperfect-2015.pdf http://www.dx.doi.org/10.1007/s10714-015-1887-3 |
Direitos |
2015, Springer |
Palavras-Chave | #Science & Technology #Physical Sciences #Astronomy & Astrophysics #Physics, Multidisciplinary #Physics, Particles & Fields #Physics #Shear-free relativistic fluids #Cosmology #Gamma law #GENERAL-RELATIVITY #SPACETIMES #CONJECTURE #MODELS |
Tipo |
Journal Article |