DISKOSEISMOLOGY AND QPOs CONFRONT BLACK HOLE SPIN
نویسندگان
چکیده
منابع مشابه
Interpreting black hole QPOs
In all the microquasars with two hHz QPOs, the ratio of the frequencies is 3:2, supporting our suggestion that a non-linear resonance between two modes of oscillation in the accretion disk plays a role in exciting the observed modulations of the X-ray flux. We discuss the evidence in favor of this interpretation, and we relate the black hole spin to the frequencies expected for various types of...
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There are now four low mass X-ray binaries with black holes which show twin resonant-like HFQPOs. Similar QPOs might have been found in Sgr A∗. I review the power spectral density distributions of the three X-ray flares and the six NIR flares published for Sgr A∗ so far, in order to look for more similarities than just the frequencies between the microquasar black holes and Sgr A∗. The three X-...
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Observations of X-ray emissions from binary systems have always been considered important tools to test the validity of General Relativity in strong-field regimes. The pairs and triplets of high frequency quasi-periodic oscillations observed in binaries containing a black hole candidate, in particular, have been proposed as a means to measure more directly the black hole properties such as its ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2012
ISSN: 2041-8205,2041-8213
DOI: 10.1088/2041-8205/752/2/l18