Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F10%3A00044136" target="_blank" >RIV/00216224:14310/10:00044136 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices
Original language description
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 0.00401s/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.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomical Journal
ISSN
0004-6256
e-ISSN
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Volume of the periodical
140
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
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UT code for WoS article
000278691700020
EID of the result in the Scopus database
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