DISKOSEISMOLOGY AND QPOs CONFRONT BLACK HOLE SPIN

Journal Article · Wed Jun 20 00:00:00 EDT 2012 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/752/2/L18· OSTI ID:22047749

Wagoner, Robert V., E-mail: [e-mail] ^[1]

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1. Department of Physics and KIPAC, Stanford University, Stanford, CA 94305-4060 (United States)

We compare the determinations of the angular momentum of stellar mass black holes via the continuum and line methods with those from diskoseismology. The assumption that is being tested is that one of the quasi-periodic oscillations (QPOs) in each binary X-ray source is produced by the fundamental g-mode. This should be the most robust and visible normal mode of oscillation of the accretion disk, and therefore its absence should rule out diskoseismology as the origin of QPOs. The comparisons are consistent with the second highest frequency QPO being produced by this g-mode, but are not consistent with models in which one QPO frequency is that of the innermost stable circular orbit.

• OSTI ID: 22047749
• Journal Information: Astrophysical Journal Letters, Vol. 752, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCRETION DISKS
ASTRONOMY
ASTROPHYSICS
BINARY STARS
BLACK HOLES
COMPARATIVE EVALUATIONS
COSMIC X-RAY SOURCES
MASS
ORBITS
OSCILLATIONS
PERIODICITY
SEISMOLOGY
SPIN
X RADIATION