Bremen 2017 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 6: Relativistische Astrophysik

GR 6.2: Talk

Tuesday, March 14, 2017, 14:20–14:40, SFG 0140

Analytic model for relativistic dust accretion onto a Kerr-Newman black hole — •Kris Schroven, Eva Hackmann, and Claus Lämmerzahl — Zarm, Universität Bremen, Bremen, Germany

We will discuss analytically a stationary axis symmetric accretion fl ow of dust-like particles on a Kerr-Newman black hole. Even though the particles are treated to be non interacting, we will expect them to form, if charged, a plasma. Streamlines are expressed by the equations of motion of charged test particles in Kerr-Newman space time. The corresponding density field, created by charged and uncharged particles, is calculated numerically. This model provides a good way to present the in influence of the specific angular momentum and the specific charge of the black hole and test particles on the course of the accretion flow and density field. Furthermore the influence on the location of the outer and inner edge of the formed accretion disc can be discussed within this model.