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GR: Fachverband Gravitation und Relativitätstheorie

GR 10: GR and Astrophysics I

GR 10.4: Vortrag

Donnerstag, 21. März 2019, 12:15–12:30, HS 4

Accretion disk in distorted BH — •Shokoufeh Faraji and Eva Hackmann — Zarm, Bremen

The space-time in the vicinity of the horizon in the presents of a static distribution of matter localized outside the black hole horizon in the form of accretion disks,remain vacuum; however, this presence of matter distort the metric. This solution is called distorted black hole. The metric near horizon of a general statistic black hole was studied by V.P. Frolov and N. Sanchez in 1986. In general, if the distribution of matter outside the black hole is axisymmetric, the metric of the distorted black hole allows a details description that discussed by R. Geroch and J.B. hartle in 1982. In this work, we describe the construction of a thin accretion disk outside a distorted black hole horizon, when only low order multipols are present. The physical characteristics of the resulting thin disk are discussed. "