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Black Hole Spin in X-Ray Binaries: Observational Consequences

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arxiv astro-ph/9704072 v2 pith:SOPP2GQA submitted 1997-04-09 astro-ph

S. N. Zhang , Wei Cui , Wan Chen This is my paper · ORCID
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keywords blackholediskbinariesx-rayaccretioncomponentconsequences
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We discuss the observational consequences of black hole spin in X-ray binaries within the framework of the standard thin accretion disk model. When compared to theoretical flux distribution from the surface of a thin disk surrounding a Kerr black hole, the observed X-ray properties of the Galactic superluminal jet sources, GRO J1655-40 and GRS 1915+105, strongly suggest that each contains a black hole spinning rapidly in the same direction as the accretion disk. We show, however, that some other black hole binaries with an ultra-soft X-ray component probably harbor only non- or slowly-spinning black holes, and we argue that those with no detectable ultra-soft component above 1-2 keV in their high luminosity state may contain a fast-spinning black hole but with a retrograde disk. Therefore, all classes of known black hole binaries are united within one scheme. Furthermore, we explore the possibility that spectral state transitions in Cyg X-1 are simply due to temporary disk reversal, which can occur in a wind accretion system.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Black Hole Mergers as the Fastest Photon Ring Scramblers

    gr-qc 2026-03 conditional novelty 6.0 of 10

    Merger remnant mass and spin are claimed to maximize the average Lyapunov exponent of the photon shell of an effective Kerr black hole, matching numerical relativity fits within a few percent for q ≲ 20.

  2. Tidal perturbations of an extreme mass ratio inspiral around a Kerr black hole

    gr-qc 2026-01 conditional novelty 6.0 of 10

    A closed-form Kerr metric under slow quadrupolar tides yields spin-dependent tidal shifts of the ISCO and light ring, with larger shifts for retrograde orbits around fast-spinning holes.

  3. Regular Rotating Black Hole: Probing the boundaries of the Radiative Signatures and Jet Power

    astro-ph.HE 2025-08 conditional novelty 5.0 of 10

    MOG regular rotating black holes are compatible with most X-ray binary data only for beta below about 0.38 to 0.4, and are excluded for the near-extremal source GRS 1915+105.

  4. Estimation of black hole spins in low-mass AGNs and comparison with other types of AGNs

    astro-ph.HE 2026-06 unverdicted novelty 3.0 of 10

    Spins of low-mass AGN black holes decrease with mass, supporting mergers or chaotic accretion as growth mechanisms and suggesting an evolutionary sequence where spins first decrease then slowly increase.

  5. Stellar-Mass Black Holes

    astro-ph.HE 2025-07 conditional novelty 1.0 of 10

    A concise review of stellar-mass black hole physics and observations, plus a speculative interstellar mission concept.

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