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Towards modeling qu...
Towards modeling quasi-periodic oscillations of microquasars with oscillating slender tori
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- Mazur, G. P. (author)
- Polish Academy of Sciences,Uniwersytet Warszawski,University of Warsaw
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- Vincent, F. H. (author)
- Polish Academy of Sciences
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- Johansson, Mats, 1984 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för data- och informationsteknik, datavetenskap (GU),Department of Computer Science and Engineering, Computing Science (GU)
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- Sramkova, Eva, 1982 (author)
- Silesian University Opava
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- Torok, G. (author)
- Silesian University Opava
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- Bakala, P. (author)
- Silesian University Opava
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- Abramowicz, Marek A, 1945 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Polish Academy of Sciences,Chalmers tekniska högskola,Chalmers University of Technology,Silesian University Opava
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- Johansson, Markus, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2013-06-05
- 2013
- English.
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In: Astronomy & Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 554
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Abstract
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- Context. One of the often discussed models for high-frequency quasi-periodic oscillations of X-ray binaries is the oscillating torus model, which considers oscillation modes of slender accretion tori. Aims. Here, we aim at developing this model by considering the observable signature of an optically thick slender accretion torus subject to simple periodic deformations. Methods. We compute light curves and power spectra of a slender accretion torus subject to simple periodic deformations: vertical or radial translation, rotation, expansion, and shear. Results. We show that different types of deformations lead to very different Fourier power spectra and therefore could be observationally distinguished. Conclusions. This work is a first step in a longer term study of the observable characteristics of the oscillating torus model. It gives promising perspectives on the possibility of constraining this model by studying the observed power spectra of quasi-periodic oscillations.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- accretion
- accretion disks
- black hole physics
- relativistic processes
- Relativistic processes
Publication and Content Type
- ref (subject category)
- art (subject category)
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Mazur, G. P.
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Vincent, F. H.
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Johansson, Mats, ...
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Sramkova, Eva, 1 ...
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Torok, G.
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Bakala, P.
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Abramowicz, Mare ...
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Johansson, Marku ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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NATURAL SCIENCES
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Astronomy & Astr ...
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University of Gothenburg
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Chalmers University of Technology