WOLF, M., Hana KUČÁKOVÁ, P. ZASCHE, L. SMELCER, K. HORNOCH, K. HONKOVA, Jakub JURYŠEK, M. MASEK a M. LEHKY. Possible companions in low-mass eclipsing binaries: V380 Dra, BX Tri, and V642 Vir. Contributions of the Astronomical Observatory Skalnaté pleso. 2020, roč. 50, č. 2, s. 637-641. ISSN 1335-1842. Dostupné z: https://dx.doi.org/10.31577/caosp.2020.50.2.637. |
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@article{49460, author = {Wolf, M. and Kučáková, Hana and Zasche, P. and Smelcer, L. and Hornoch, K. and Honkova, K. and Juryšek, Jakub and Masek, M. and Lehky, M.}, article_number = {2}, doi = {http://dx.doi.org/10.31577/caosp.2020.50.2.637}, keywords = {binaries: eclipsing; stars: late-type; stars: fundamental parameters; stars: individual (V380 Dra; BX Tri; V642 Vir)}, language = {eng}, issn = {1335-1842}, journal = {Contributions of the Astronomical Observatory Skalnaté pleso}, title = {Possible companions in low-mass eclipsing binaries: V380 Dra, BX Tri, and V642 Vir}, url = {http://www.astro.sk/caosp/Eedition/Abstracts/2020/Vol_50/No_2/pp637-641_abstract.html}, volume = {50}, year = {2020} }
TY - JOUR ID - 49460 AU - Wolf, M. - Kučáková, Hana - Zasche, P. - Smelcer, L. - Hornoch, K. - Honkova, K. - Juryšek, Jakub - Masek, M. - Lehky, M. PY - 2020 TI - Possible companions in low-mass eclipsing binaries: V380 Dra, BX Tri, and V642 Vir JF - Contributions of the Astronomical Observatory Skalnaté pleso VL - 50 IS - 2 SP - 637-641 EP - 637-641 SN - 13351842 KW - binaries: eclipsing KW - stars: late-type KW - stars: fundamental parameters KW - stars: individual (V380 Dra KW - BX Tri KW - V642 Vir) UR - http://www.astro.sk/caosp/Eedition/Abstracts/2020/Vol_50/No_2/pp637-641_abstract.html N2 - We present the new results of our long-term observational project to analyze the orbital period variations of low-mass eclipsing binaries. More then 200 new precise mid-eclipse times recorded with a CCD were obtained for three eclipsing binaries with short orbital periods: V380 Dra (P = 0(d).49), BX Tri (0(d).19), and V642 Vir (0(d). 52). Observed-minus-calculated diagrams of the stars were analyzed using all reliable timings, and new parameters of the light-time effect were obtained. We derived for the first time the short orbital periods of possible third bodies of 10-20 years for these objects. We calculated that the minimum masses of the third component are close to 0.2 M-circle dot, which corresponds to the mass of M4 - M5 red dwarfs. The multiplicity of these systems also plays an important role in the precise determination of their physical parameters. ER -
WOLF, M., Hana KUČÁKOVÁ, P. ZASCHE, L. SMELCER, K. HORNOCH, K. HONKOVA, Jakub JURYŠEK, M. MASEK a M. LEHKY. Possible companions in low-mass eclipsing binaries: V380 Dra, BX Tri, and V642 Vir. \textit{Contributions of the Astronomical Observatory Skalnaté pleso}. 2020, roč.~50, č.~2, s.~637-641. ISSN~1335-1842. Dostupné z: https://dx.doi.org/10.31577/caosp.2020.50.2.637.
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