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V2368 Ophiuchi: an eclipsing and double-lined spectroscopic binary used as a photometric comparison star for U Ophiuchi
- 1.0372982 - ASÚ 2012 RIV FR eng J - Journal Article
Harmanec, P. - Božić, H. - Mayer, P. - Eenens, P. - Broz, M. - Wolf, M. - Yang, S. - Šlechta, Miroslav - Ruždjak, D. - Sudar, D. - Ak, H.
V2368 Ophiuchi: an eclipsing and double-lined spectroscopic binary used as a photometric comparison star for U Ophiuchi.
Astronomy & Astrophysics. Roč. 531, July (2011), A49/1-A49/10. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA ČR GD205/08/H005; GA ČR GAP209/10/0967
Grant - others:GA ČR(CZ) GA205/06/0304
Institutional research plan: CEZ:AV0Z10030501
Keywords : early-type stars * close binaries stars
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 4.587, year: 2011
The A-type star HR 6412 = V2368 Oph was used by several investigators as a photometric comparison star for the known eclipsing binary U Oph but was found to be variable by three independent groups, including us. By analysing series of new spectral and photometric observations and a critical compilation of available radial velocities, we were able to find the correct period of light and radial-velocity variations and demonstrate that the object is an eclipsing and double-lined spectroscopic binary moving in a highly eccentric orbit.
Permanent Link: http://hdl.handle.net/11104/0206165
Number of the records: 1