5 papers
Looking for observational signatures of early binary black hole systems
Peggy Varniere, Fabien Casse, Fabrice Dodu
Context. A lot of recent studies have focused on the observables associated with near merger binary black-holes (BBHs) embedded in a circumbinary disk (CBD) but we still we lack kn…
Electromagnetic variability from circumbinary discs around binary black holes during their post-decoupling epoch
Raphaël Mignon-Risse, Peggy Varniere, Fabien Casse
We present general-relativistic hydrodynamical simulations of inviscid circumbinary discs (CBDs) around near equal-mass binary black holes (BBH) in the binary-disc post-decoupling…
A simple toy model for the electromagnetic variability of lump-dominated circumbinary disks around binary black holes
R. Mignon-Risse, P. Varniere, F. Casse
The electromagnetic detection of circumbinary disks around pre-merger binary black holes (BBHs) relies on theoretical predictions. These are generally obtained through expensive nu…
Sculpting the outer edge of accretion disks in pre-circumbinary binary black hole systems
Fabien Casse, Peggy Varniere, Léna Arthur +1
Binary black hole systems (BBHs) have become a vivid reality in astrophysics as stellar-mass black hole mergers are now detected through their related gravitational wave emission d…
Can we disentangle between the emission of an accretion disc around a single black hole and a circumbinary disc ?
Peggy Varniere, Raphaël Mignon-Risse, Fabien Casse
The detection of gravitational waves from binary black holes (BBHs) started the hunt for their pre-merger electromagnetic emission. In that respect, numerical simulations have been…