QIAN, S.-B., L.-Q. JIANG, L.-Y. ZHU, Miloslav ZEJDA, Zdeněk MIKULÁŠEK, E. FENÁNDES-LAJÚS and N.-P. LIU. Binary systems at and beyond the short-period limit of WUMa systems. Contributions of the Astronomical Observatory Skalnaté Pleso. Tatranská Lomnica (Slovensko): Astronomický ústav SAV, Tatranská Lomnica, 2014, vol. 43, No 3, p. 290-293. ISSN 1335-1842.
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Basic information
Original name Binary systems at and beyond the short-period limit of WUMa systems
Name in Czech Dvojhvězdy v a za krátkoperiodickou hranicí systémů W UMa
Authors QIAN, S.-B. (156 China), L.-Q. JIANG (156 China), L.-Y. ZHU (156 China), Miloslav ZEJDA (203 Czech Republic, guarantor, belonging to the institution), Zdeněk MIKULÁŠEK (203 Czech Republic, belonging to the institution), E. FENÁNDES-LAJÚS (32 Argentina) and N.-P. LIU (156 China).
Edition Contributions of the Astronomical Observatory Skalnaté Pleso, Tatranská Lomnica (Slovensko), Astronomický ústav SAV, Tatranská Lomnica, 2014, 1335-1842.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher Slovakia
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 0.591
RIV identification code RIV/00216224:14310/14:00076687
Organization unit Faculty of Science
UT WoS 000338483100021
Keywords (in Czech) těsné dvojhvězdy, zákrytové dvojhvězdy, hvězdy s malou hmotností
Keywords in English Stars: binaries : close; Stars: binaries : eclipsing; Stars: low-mass
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: prof. RNDr. Zdeněk Mikulášek, CSc., učo 534. Changed: 2/10/2014 14:01.
Abstract
The short-period limit of W UMa-type contact binaries of about 0.22 days is very sharp and well defined. Observations and investigations of close binaries beyond this limit can provide important information on the origin and evolutionary processes of contact binaries, as well as on the formation and migration history of low-mass stars. In the past several years, we have monitored some close binaries below the short-period limit by using several small telescopes and 2m-class telescopes. Photometric solutions and period changes of these binary stars were analyzed and investigated. Some new contact binaries below the limit were detected. Our results reveal that the rarity of contact binaries below the short-period limit could not be explained by rapid dynamical destruction.
Abstract (in Czech)
The short-period limit of W UMa-type contact binaries of about 0.22 days is very sharp and well defined. Observations and investigations of close binaries beyond this limit can provide important information on the origin and evolutionary processes of contact binaries, as well as on the formation and migration history of low-mass stars. In the past several years, we have monitored some close binaries below the short-period limit by using several small telescopes and 2m-class telescopes. Photometric solutions and period changes of these binary stars were analyzed and investigated. Some new contact binaries below the limit were detected. Our results reveal that the rarity of contact binaries below the short-period limit could not be explained by rapid dynamical destruction.
Links
LH12175, research and development projectName: Studium vybraných téměř kontaktních dvojhvězd (Acronym: NCBS)
Investor: Ministry of Education, Youth and Sports of the CR
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