Inclination dependence of QPO phase lags in black hole X-ray binaries
Inclination dependence of QPO phase lags in black hole X-ray binaries
Quasi-periodic oscillations (QPOs) with frequencies from ∼0.05to30 Hz are a common feature in the X-ray emission of accreting black hole binaries. As the QPOs originate from the innermost accretion flow, they provide the opportunity to probe the behaviour of matter in extreme gravity. In this paper, we present a systematic …