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  • Mazur, G. P.Polish Academy of Sciences,Uniwersytet Warszawski,University of Warsaw (author)

Towards modeling quasi-periodic oscillations of microquasars with oscillating slender tori

  • Article/chapterEnglish2013

Publisher, publication year, extent ...

  • 2013-06-05
  • EDP Sciences,2013

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/181010
  • https://gup.ub.gu.se/publication/181010URI
  • https://doi.org/10.1051/0004-6361/201321488DOI
  • https://research.chalmers.se/publication/533233URI

Supplementary language notes

  • Language:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • 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 and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Vincent, F. H.Polish Academy of Sciences (author)
  • Johansson, Mats,1984Gothenburg University,Göteborgs universitet,Institutionen för data- och informationsteknik, datavetenskap (GU),Department of Computer Science and Engineering, Computing Science (GU) (author)
  • Sramkova, Eva,1982Silesian University Opava(Swepub:cth)sramkova (author)
  • Torok, G.Silesian University Opava (author)
  • Bakala, P.Silesian University Opava (author)
  • Abramowicz, Marek A,1945Gothenburg 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(Swepub:cth)number44 (author)
  • Johansson, Markus,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)markusjo (author)
  • Polish Academy of SciencesUniwersytet Warszawski (creator_code:org_t)

Related titles

  • In:Astronomy & Astrophysics: EDP Sciences5540004-63611432-0746

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