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 $10^{-2}\lesssim L/L_{\mathrm{Edd}}\lesssim 0.3$, with a hard X-ray spectral state that persists from…