Detailed Information on Publication Record
2010
Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices
ZHU, Liying, Shengbang QIAN, Zdeněk MIKULÁŠEK, Miloslav ZEJDA, Pavel ZVĚŘINA et. al.Basic information
Original name
Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices
Name in Czech
Fotometrická studie velmi krátkoperiodické mělké kontaktní dvojhvězdy DD Vlasů Bereniky
Authors
ZHU, Liying (156 China), Shengbang QIAN (156 China), Zdeněk MIKULÁŠEK (203 Czech Republic, guarantor, belonging to the institution), Miloslav ZEJDA (203 Czech Republic, belonging to the institution), Pavel ZVĚŘINA (203 Czech Republic, belonging to the institution) and Roger DIETHELM (756 Switzerland)
Edition
Astronomical Journal, Springer Science+Business Media, 2010, 0004-6256
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 4.555
RIV identification code
RIV/00216224:14310/10:00044136
Organization unit
Faculty of Science
UT WoS
000278691700020
Keywords (in Czech)
zákrytové dvojhvězdy; hvězdný vývoj; jednotlivé hvězdy: DD Com
Keywords in English
eclipsing binaries; stellar evolution; individual star: DD Com
Tags
International impact, Reviewed
Změněno: 15/3/2012 16:55, prof. RNDr. Zdeněk Mikulášek, CSc.
V originále
The first photometric solutions of the very short period (VSP) close binary DD Comae Berenices (P=0.26920811) based on our new complete IRc light curves are derived. They show that the system belongs to shallow contact W UMa systems with an overcontact. The observed light curve distortions are explained by employing the spots model due to the latetype nature of both components. We have collected all available photometric data which we treated simultaneously using our own method based on the usage of computed model light curves as templates. We recalculated published times of light minimum and added new ones of our own to construct an OC diagram that spans over 70 years. We found that the orbital period of DD Com is continuously increasing with 0.00401 s/yr. The period increase may be caused by the mass transfer from the less massive component to the more massive one. DD Com is a rare system that lies on the expanding phase of the TRO cycle.
In Czech
The first photometric solutions of the very short period (VSP) close binary DD Comae Berenices (P=0.26920811) based on our new complete IRc light curves are derived. They show that the system belongs to shallow contact W UMa systems with an overcontact. The observed light curve distortions are explained by employing the spots model due to the latetype nature of both components. We have collected all available photometric data which we treated simultaneously using our own method based on the usage of computed model light curves as templates. We recalculated published times of light minimum and added new ones of our own to construct an OC diagram that spans over 70 years. We found that the orbital period of DD Com is continuously increasing with 0.00401 s/yr. The period increase may be caused by the mass transfer from the less massive component to the more massive one. DD Com is a rare system that lies on the expanding phase of the TRO cycle.
Links
| MEB080832, research and development project |
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| ME10099, research and development project |
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