MG13 - Talk detail |
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Participant |
Guariento, Daniel | |||||||
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Institution |
Universidade de São Paulo, Instituto de Física - Rua Corinto, 543, ap. 44-A - São Paulo - Vila Indiana - Brazil | |||||||
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Session |
BH3 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
Dynamical black holes and accretion in an expanding universe | |||||
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Abstract |
We analyze several approaches at obtaining a fluid interpretation for a fully dynamical solution of Einstein's equations describing an accreting (or evaporating) black hole in an expanding universe, using the generalized McVittie solution as a starting point. We show that a description in terms of multiple perfect fluids is severely constrained by consistency checks of the field equations, as well as a single perfect fluid with a global curvature term added to the metric. Extending the analysis to consider imperfect fluids alleviates some of these difficulties. |
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