About: Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices

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About: Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 0.00401 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. 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. (en)
Title	Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices (en)
skos:prefLabel	Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices Photometric Study of the Very Short Period Shallow Contact Binary DD Comae Berenices (en)
skos:notation	RIV/00216224:14310/10:00044136!RIV11-MSM-14310___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ME10099), P(MEB080832), S
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Zejda, Miloslav Zvěřina, Pavel Mikulášek, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	278847
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/10:00044136
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	eclipsing binaries; stellar evolution; individual star: DD Com (en)
http://linked.open.../riv/klicoveSlovo	stellar evolution eclipsing binaries individual star: DD Com
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[9454B26FED6C]
http://linked.open...i/riv/nazevZdroje	Astronomical Journal
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Photometric Investigation of Selected Eclipsing Binaries Spectral energy distribution in chemically peculiar stars and its variability
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	140
http://linked.open...iv/tvurceVysledku	Mikulášek, Zdeněk Zejda, Miloslav Zvěřina, Pavel Qian, Shengbang Zhu, Liying Diethelm, Roger
http://linked.open...ain/vavai/riv/wos	000278691700020
issn	0004-6256
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	14310

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