HEAD 2003 Meeting
Session 17. X-ray Binaries III
Poster, Sunday-Wednesday, March 23, 2003, Duration of Meeting

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[17.21] Accretion-EJection Instability: new results on QPOs

P. Varniere (Rochester University), M. Muno (MIT), M. Tagger (Service d'Astrophysique CEA/Saclay)

The Accretion-Ejection Instability has been proposed has been proposed to explain the low frequency Quasi-Periodic Oscillation (QPO) observed in low-mass X-Ray Binaries, in particular Black-Hole candidates. Its frequency, typically a fraction of the Keplerian frequency at the disk inner radius, is exactly in the range indicated by observations. We will show how this instability is able to produce a modulation of the X-ray flux and what are the characteristic of this modulation.

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Bulletin of the American Astronomical Society, 35#2
© 2003. The American Astronomical Soceity.