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@article{1173436,
author = {Zhu, Liying and Qian, Shengbang and Zejda, Miloslav and Mikulášek, Zdeněk},
article_location = {Cambridge},
article_number = {1},
doi = {http://dx.doi.org/10.1051/eas/1364082},
keywords = {shallow contact eclipsing binaries},
language = {eng},
issn = {1633-4760},
journal = {European Astronomical Society Publications Series},
title = {Close binaries in near and shallow contact stages},
volume = {64},
year = {2013}
}
TY - JOUR
ID - 1173436
AU - Zhu, Liying - Qian, Shengbang - Zejda, Miloslav - Mikulášek, Zdeněk
PY - 2013
TI - Close binaries in near and shallow contact stages
JF - European Astronomical Society Publications Series
VL - 64
IS - 1
SP - 435-436
EP - 435-436
SN - 16334760
KW - shallow contact eclipsing binaries
N2 - After a detailed investigation of new observations obtained by small telescopes, we found a group of near and shallow contact binaries with decreasing period including BS Vul, MR Com, EP Cep, ES Cep and V369 Cep. BS Vul and V369 Cep are primary-filling near-contact binaries, while MR Com, EP Cep and ES Cep are shallow contact binaries. With their decrease in period, BS Vul and V369 Cep will evolve to the shallow-contact systems with higher mass ratios, just like ES Cep. The period decease of shallow contact binaries could be caused by the combined effect of the thermal relaxation oscillation (TRO) and variable angular momentum loss (AML). This produces contact binaries in oscillating circles that evolve towards the lower mass ratio direction. That means systems resemble ES Cep will evolve to those systems with lower mass ratio, such as MR Com and EP Cep.
ER -
ZHU, Liying, Shengbang QIAN, Miloslav ZEJDA a Zdeněk MIKULÁŠEK. Close binaries in near and shallow contact stages. \textit{European Astronomical Society Publications Series}. Cambridge, 2013, roč.~64, č.~1, s.~435-436. ISSN~1633-4760. Dostupné z: https://dx.doi.org/10.1051/eas/1364082.
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