Effects of the mass transfer and presence of the third components in close binary stellar systems

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dc.contributor.authorTvardovskyi, D. E.
dc.contributor.authorMarsakova, V. I.
dc.contributor.authorAndronov, Ivan L.
dc.date.accessioned2017-12-22T13:38:34Z
dc.date.available2017-12-22T13:38:34Z
dc.date.issued2017
dc.description.abstractIn our research, we have studied 6 close binary stellar systems which are eclipsing variables of β Lyrae and W Ursae Majoris types of variability. We have studied their O-C curves. To build them, we used moments of minima, listed in the BRNO database. Also, we used ones, which we obtained as the result of processing of observational data taken from AAVSO database. As the result of the O-C analysis, we detected that all of these stars have parabolic O-C curves, which might be caused by mass transfer from one component to another. In an addition, 3 from researched stars (U Peg, V0523 Cas and WZ Cyg) have superimposed parabolic and cyclic O-C changes that could be caused by presence of the third components in the systems. Also, we calculated minimal possible masses of third components, rates of the mass transfer for these systems and corrected the ephemerides.uk
dc.identifierDOI: http://dx.doi.org/10.18524/1810-4215.2017.30.115463
dc.identifier.citationOdessa Astronomical publications = Одесские астрономические публикации = Одеські астрономічні публікаціїuk
dc.identifier.urihttps://dspace.onu.edu.ua/handle/123456789/12250
dc.language.isoenuk
dc.publisherОдеський національний університет імені І. І. Мечниковаuk
dc.relation.ispartofseries;Vol. 30.
dc.subjecteclipsing binariesuk
dc.subjectO-C curveuk
dc.subjectβ Lyrае typeuk
dc.subjectW Ursae Majoris typeuk
dc.subjectephemeriduk
dc.subjectWZ Cyguk
dc.subjectV0388 Cyguk
dc.subjectSX Auruk
dc.subjectBF Auruk
dc.subjectU Peguk
dc.subjectV0523 Casuk
dc.titleEffects of the mass transfer and presence of the third components in close binary stellar systemsuk
dc.typeArticleuk
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Odesa Astronomical Publications