Disk instabilities and Quasi-Periodic Oscillations

Details Disk instabilities and Quasi-Periodic Oscillations Disk instabilities and Quasi-Periodic Oscillations

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007rmxac..27...26t&link_type=abstract

Triggering Relativistic Jets (Eds. William H. Lee & Enrico Ramírez-Ruiz) Revista Mexicana de Astronomía y Astrofísica (Serie de

Mathematics

Logic

1

Accretion, Accretion Disks, Galaxy: Center, Instabilities, Magnetohydrodynamics, Plasmas

Scientific paper

In this paper I review progress made in the last few years in explaining the low-frequency QPO of microquasars by the Accretion-Ejection Instability, and how this may guide us in understanding the short and long term variability of these sources. I then turn to another, closely related instability, which also relates to diskoseismologic models. I show how it might apply to explain the high-frequency QPO of microquasars, and the flares in Sgr A*, the massive black hole at the Galactic Center.

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