MIKULÁŠEK, Zdeněk, Juraj ZVERKO, Iosif Iosifovič ROMANYUK, Jozef ŽIŽNOVSKÝ, Vladimír G. ELKIN and Dimitrij O. KUDRYAVTSEV. Spectroscopic study of Am SB2 eclipsing binary HR 6611 (Spectroscopic study pf Am SB2 eclipsing binary HR 6611). In Magnetic stars, Proceedings of the International Conference. Nizhnij Arkhyz, Russia: Special Astrophysical Observatory, RAS, 2004, p. 191-197.
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Basic information
Original name Spectroscopic study of Am SB2 eclipsing binary HR 6611
Name in Czech Spektroskopické studium Am SB2 zákrytové dvojhvězdy HR 6611
Authors MIKULÁŠEK, Zdeněk (203 Czech Republic, guarantor), Juraj ZVERKO (703 Slovakia), Iosif Iosifovič ROMANYUK (643 Russian Federation), Jozef ŽIŽNOVSKÝ (703 Slovakia), Vladimír G. ELKIN (643 Russian Federation) and Dimitrij O. KUDRYAVTSEV (643 Russian Federation).
Edition Nizhnij Arkhyz, Russia, Magnetic stars, Proceedings of the International Conference, p. 191-197, 7 pp. 2004.
Publisher Special Astrophysical Observatory, RAS
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher Russian Federation
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/04:00019876
Organization unit Faculty of Science
Keywords in English binaries; Am stars; elemental abundances; Zeeman spectra; manetic field
Tags Am stars, binaries, elemental abundances, manetic field, Zeeman spectra
Tags International impact
Changed by Changed by: prof. RNDr. Zdeněk Mikulášek, CSc., učo 534. Changed: 12/1/2007 08:50.
Abstract
CCD Zeeman spectra of the eclipsing binary HR 6611 with Am components were obtained with the 6-m SAO telescope. We measured R-L shifts of about 20 well-defined spectral lines. A slightly asynchronous rotation of the primary component was revealed and the Am-type peculiarity of both the components was confirmed. The analysis of 23 spectra of the binary and 33 spectra of nonmagnetic stars does not exclude an effective magnetic field on HR 6611A, varying cyclically with an semiamplitude of 0.2 kG, but definitely not with the orbital period 3.895 d.
Abstract (in Czech)
Pomocí 6m dalekohledu SAO byla získána zeemanovská spektra zákrytové dvojhvězdy HR 6611 s Am složkami, u nichž byly měřeny vzájemné posuvy v R a L polarizacích u dvacítky dobře definovaných spektrálních čar. Byla objevena mírně asynchronní rotace primární složky, metalicita obou složek dvojhvězdy byla potvrzena. Analýza 23 spekter dvojhvězdy a 33 spekter nemagnetických hvězd nevylučuje existenci magnetického pole u HR 6611A, které se mění s poloamplitudou 0,2 kG, nikoli však s orbitalní periodou 3,895 dne.
Links
GA205/02/0445, research and development projectName: Fyzika horkých hvězd a hvězdných systémů s horkými složkami
Investor: Czech Science Foundation, Physics of hot stars and stellar systems with hot components
ME 131, research and development projectName: Výzkum kapalných krystalických polymerů
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