Methods of the Long-term Radial-Velocity Variation Removal and their Application to Detect Duplicity of Several Be Stars

0388407 - ASÚ 2013 RIV GB eng C - Conference Paper (international conference)
Nemravová, J. - Harmanec, P. - Koubský, Pavel - Miroshnichenko, A. S.
Methods of the Long-term Radial-Velocity Variation Removal and their Application to Detect Duplicity of Several Be Stars.
From Interacting Binaries to Exoplanets: Essential Modeling Tools. Cambridge: Cambridge University Press, 2012 - (Richards, M.), s. 319-320. Proceedings of the International Astronomical Union, IAU S282. ISBN 9781107019829. ISSN 1743-9213.
[Symposium of the International Astronomical Union /282./. Tatranská Lomnica (SK), 18.07.2011-22.07. 2011]
Institutional research plan: CEZ:AV0Z10030501
Keywords : data analysis * radial velocities * Be stars
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

There are several types of binary stars which show non-periodical radial velocity variations with the amplitude larger than those connected with the orbital motion. The non-periodical changes have to be removed in order to study the orbital ones. We propose three removal techniques, two of which are based on the trend modeling with continuous functions and the third one that takes the orbital motion into account.
Permanent Link: http://hdl.handle.net/11104/0217302