The Accretion Disk of GRS 1915+105: What Makes it Go Crazy?

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

GRS 1915+105 is a black hole in the Milky Way galaxy accreting material from a companion star. It has been in an active state of outburst since its discovery in 1992, exhibiting large plasma ejections and rapid X-ray variability. Here, I present a study of some of the most extreme variability seen from this source and perform simple accretion disk simulations to try to reproduce it. I present evidence that the ejection of material into a jet and the associated destruction of a large-scale magnetic field may directly trigger instabilities in the accretion disk.
D. M. Rothstein is supported by an NSF Astronomy and Astrophysics Postdoctoral Fellowship under award AST-0602259.

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