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Precise mass and spin measurements for a stellar-mass black hole through X-ray timing: the case of GRO J1655โˆ’40

Precise mass and spin measurements for a stellar-mass black hole through X-ray timing: the case of GRO J1655โˆ’40

We present a systematic analysis of the fast time variability properties of the transient black hole binary GRO J1655-40, based on the complete set of RossiXTE observations. We demonstrate that the frequencies of the quasi-periodic oscillations and of the broad band noise components and their variations match accurately the strong โ€ฆ