Global MHD instabilities: from Low Frequency to High Frequency QPOs, and to Sgr A*

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dc.creatorTagger, Michel
dc.date2006-12-07
dc.date.accessioned2026-07-07T10:21:10Z
dc.date.available2026-07-07T10:21:10Z
dc.descriptionI review recent work that goes beyond our model for the Low-Frequency Quasi-Periodic Oscillation of microquasars, based on the Accretion-Ejection Instability. I show that similar instabilities, which can be viewed as strongly unstable versions of the diskoseismologic modes, provide explanations for both the High-Frequency QPO and for the quasi-periodicity observed durng the flares of Sgr A*, the supermassive black hole at the Galactic Center.
dc.description11 pages, 8 figures, in the proceedings of the VI Microquasar Workshop "Microquasars and beyond", Como, 2006 Sep 18-22 (Italy), ed: T. Belloni (2006), PoS(MQW6)031
dc.identifierhttps://arxiv.org/abs/astro-ph/0612175
dc.identifierhttp://arxiv.org/abs/astro-ph/0612175
dc.identifierPoSMQW6:031,2006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175087
dc.subjectAstrophysics
dc.titleGlobal MHD instabilities: from Low Frequency to High Frequency QPOs, and to Sgr A*
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