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astro-ph2000
The Accretion-Ejection Instability and a "Magnetic Flood" scenario for GRS 1915+105
Michel Tagger
I present a global view of recent results on the Accretion-Ejection Instability (AEI), described in more details in other contributions to this workshop. These results address esse…
astro-ph2000
Entropic-Acoustic instability in shocked accretion flows
T. Foglizzo, M. Tagger
A new instability mechanism is described in accretion flows where the gas is accelerated from a stationary shock to a sonic surface. The instability is based on a cycle of acoustic…