Talk detail

Participant	Varniere, Peggy
Institution	APC - Universite Paris Diderot - 10, rue Alice Domon et Léonie Duquet - Paris - France - France

Session	SO1	Accepted		Order	Time
Talk	Oral abstract	Title	THE ACCRETION-EJECTION INSTABILITY AND MICROQUASARS
Co-authors
Abstract	We will shortly review the Accretion-Ejection Instability and show how to provides a good model to explain the Low-Frequency QPO from microquasars. From that we will show how the Magnetic Flood Scenario can explain the variability class $\beta$ of GRS 1915+105 and how to extend it beyond that class.

Session	SO1	Accepted		Order	Time
Talk	Poster abstract	Title	A Variability Based Classification for Microquasar
Co-authors
Abstract	There has been a long string of efforts to classify observations from microquasars since fiifteen years. The progress made in the understanding of the variability of those objects during the past few years make it possible now, to try to use the physical process to make a new classification. This will also allow a reunification of all the microquasars in one classification, without their specificities (mass, variation timescale) taken into account. Here we described this classification based on the instabilities occurring in the disk and link those with the variability observed.

Session	SO2	Accepted		Order	Time
Talk	Oral abstract	Title	A possible origin for the type of LFQPO in microquasars
Co-authors
Abstract	The three types of Low-Frequency Quasi-Periodic Oscillations have been observed in several microquasars and all of them exhibit at least two types (B and C). In this poster we will look at what could be at the origin of those different type of LFQPO. We explore the possibility of it being the consequence of the interaction between the Accretion-Ejection Instability, at the origin of the LFQPO in its "regular" form (C) and the different mode of another disk instability occurring in the disk, the Rossby-Wave Instability.

Session	SO1	Accepted		Order	Time
Talk	Poster abstract	Title	A possible origin for the HFQPOs in microquasars
Co-authors
Abstract	There have been a long string of efforts to understand the source of the variability observed in microquasars but no model has yet gained wide acceptance, especially concerning the High-Frequency Oscillation (HFQPO). In this poster we present the model based on a disk instability, the Rossby Wave Instability for which we have made recent progress.