Revealing accretion on to black holes: X-ray reflection throughout three outbursts of GX 339โ4
Revealing accretion on to black holes: X-ray reflection throughout three outbursts of GX 339โ4
Understanding the dynamics behind black hole state transitions and the changes they reflect in outbursts has become long-standing problem. The X-ray reflection spectrum describes the interaction between the hard X-ray source (the power-law continuum) and the cool accretion disc it illuminates, and thus permits an indirect view of how the โฆ