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Influence of Rotation Velocity Gradient on Line Profiles of Accretion Discs of CVs

Published online by Cambridge University Press:  23 April 2012

D. Korčáková ,
T. Nagel ,
K. Werner ,
V. Suleimanov  and
V. Votruba
D. Korčáková
Affiliation:
Astronomical Institute, Charles University, V Holešovičkách 2, 18000 Praha 8, Czech Republic; email: kor@sirrah.troja.mff.cuni.cz
T. Nagel
Affiliation:
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, 72076 Tübingen, Germany
K. Werner
Affiliation:
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, 72076 Tübingen, Germany
V. Suleimanov
Affiliation:
Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, 72076 Tübingen, Germany Department of Astronomy, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia
V. Votruba
Affiliation:
Astronomical Institute AV ČR, Fričova 298, 25165 Ondřejov, Czech Republic
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Abstract

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We show the influence of the Keplerian velocity shear on the line profiles of cataclysmic variable discs. The complete disc structure is taken into account. The radial disc structure follows the alpha disc approximation. Based on this assumption, the vertical structure is computed using the detailed non-LTE code AcDc. The obtained opacities and source functions are interpolated in the 2D grid, where the radiative transfer is calculated with the inclusion of the velocity field gradient.

Keywords

cataclysmic variablesaccretion disksline: formationmethods: numerical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 255 - 256
Copyright
Copyright © International Astronomical Union 2012

References

Korčáková, D. & Kubát, J. 2005, A&A, 440, 715Google Scholar
Korčáková, D., Nagel, T., Werner, K., Suleimanov, V., & Votruba, V. 2011, A&A, 529, 119Google Scholar
Nagel, T., Dreizler, S., Rauch, T., & Werner, K. 2004, A&A, 428, 109Google Scholar
Shakura, N. I. & Sunyaev, R. A. 1973, A&A, 24, 337Google Scholar
Werner, K. & Husfeld, D. 1985, A&A, 148, 417Google Scholar