160 citations · 338 across the 9 of their papers we have counts for
7 papers · 1 filter
Thermal solutions of strongly magnetized disks and the hysteresis in X-ray binaries
Nicolas Scepi, Jason Dexter, Mitchell C. Begelman +3
X-ray binaries (XRBs) exhibit spectral hysteresis for luminosities in the range , with a hard X-ray spectral state that persists from…
Impact of the disk magnetization on MHD disk wind signature
Sudeb Ranjan Datta, Susmita Chakravorty, Jonathan Ferreira +8
Observation of blue-shifted X-ray absorption lines indicates the presence of wind from the accretion disk in X-ray binaries. Magnetohydrodynamic (MHD) driving is one of the possibl…
The jet emitting disk standard accretion disk model applied to the active galactic nuclei ultra violet Xray correlation
Samuel Barnier, Pierre-Olivier Petrucci, Jonathan Ferreira +1
The non linear correlation between the UV and X-ray emission observed in Active Galactic Nuclei remains a puzzling question that challenged accretion models. While the UV emission…
NuSTAR/XMM-Newton monitoring of the Seyfert 1 galaxy HE 1143-1810. Testing the two-corona scenario
F. Ursini, P. -O. Petrucci, S. Bianchi +11
We test the two-corona accretion scenario for active galactic nuclei in the case of the `bare' Seyfert 1 galaxy HE 1143-1810. We perform a detailed study of the broad-band UV--X-ra…
A unified accretion-ejection paradigm for black hole X-ray binaries. II. Observational signatures of jet-emitting disks
G. Marcel, J. Ferreira, P-O. Petrucci +10
We elaborate on the paradigm proposed in Ferreira et al. (2006), where the increase and decrease in the disk accretion rate is accompanied by a modification of the disk magnetizati…
Magneto centrifugal winds from accretion discs around black hole binaries
S. Chakravorty, P-O. Petrucci, J. Ferreira +8
We want to test if self-similar magneto-hydrodynamic (MHD) accretion-ejection models can explain the observational results for accretion disk winds in BHBs. In our models, the dens…