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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F13%3A%230004626" target="_blank" >RIV/47813059:19240/13:#0004626 - isvavai.cz</a>

Result on the web

<a href="http://www.aanda.org/articles/aa/abs/2013/06/aa21488-13/aa21488-13.html" target="_blank" >http://www.aanda.org/articles/aa/abs/2013/06/aa21488-13/aa21488-13.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201321488" target="_blank" >10.1051/0004-6361/201321488</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

<a href="/en/project/GPP209%2F12%2FP740" target="_blank" >GPP209/12/P740: High frequency quasi-periodic oscillations and compact object properties: theory vs. observation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ASTRONOMY & ASTROPHYSICS

ISSN

0004-6361

e-ISSN

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Volume of the periodical

554

Issue of the periodical within the volume

A&A

Country of publishing house

FR - FRANCE

Number of pages

6

Pages from-to

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UT code for WoS article

000320444200056

EID of the result in the Scopus database

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