Do X-ray binary spectral state transition luminosities vary?
Do X-ray binary spectral state transition luminosities vary?
We tabulate the luminosities of the soft-to-hard state transitions of all X-ray binaries for which there exist good X-ray flux measurements at the time of the transition, good distance estimates, and good mass estimates for the compact star. We show that the state transition luminosities are at about 1-4% of …