期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 437, 期 3, 页码 2554-2565出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stt2068
关键词
stars: individual: GRO J1655-40; X-rays: stars
资金
- ESA
- INAF PRIN [2012-6]
- EU [2011-301355]
- STFC [ST/J001600/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J001600/1] Funding Source: researchfish
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 Rossi X-ray Timing Explorer 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 field general relativistic frequencies of particle motion in the close vicinity of the innermost stable circular orbit, as predicted by the relativistic precession model.We obtain high-precision measurements of the black hole mass [M = (5.31 +/- 0.07) M-circle dot, consistent with the value from optical/NIR observations] and spin (a = 0.290 +/- 0.003), through the sole use of X-ray timing.
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