173 citations · 1.5k across the 47 of their papers we have counts for
19 papers · 1 filter
QPOs are more than timing features: Applying the Accretion-Ejection Instability in Super massive black-holes
P. Varniere
Low Frequency QPOs (LFQPOs) have always been seen uniquely as a timing feature, with most models focused on reproducing only their timing behavior. Previously, the Accretion-Ejecti…
Gravitational waves or X-ray counterpart? No need to choose
Raphaël Mignon-Risse, Peggy Varniere, Fabien Casse
Binary black holes emit gravitational waves as they inspiral towards coalescence. Searches for electromagnetic counterparts to these gravitational waves rely on looking for common…
On the origin of the lump in circumbinary discs
Raphaël Mignon-Risse, Peggy Varniere, Fabien Casse
Accreting binary black holes (BBHs) are multi-messenger sources, emitting copious electromagnetic (EM) and gravitational waves. One of their most promising EM signatures is the lig…
Impact of a binary black hole on its outer circumbinary disc
Raphaël Mignon-Risse, Peggy Varniere, Fabien Casse
Accreting supermassive binary black holes (SMBBHs) are potential targets for multi-messenger astronomy as they emit gravitational waves (GW) while their environment emits electroma…
Rossby Wave Instability and High-Frequency Quasi-Periodic Oscillations in accretion discs orbiting around black holes
Peggy Varniere, Fabien Casse, Frederic Vincent
The rather elusive High-Frequency Quasi-Periodic Oscillations(HFQPO) observed in the X-ray lightcurve of black holes have been seen in a wide range of frequencies, even within one…
On the Rossby Wave Instability in accretion discs surrounding spinning black holes
F. Casse, P. Varniere
We have performed general relativistic hydrodynamics (GRHD) simulations of 2D discs orbiting around spinning black holes and prone to the Rossby Wave Instability (RWI). We show tha…