WOLF, M., M. MASEK, P. ZASCHE, Hana KUČÁKOVÁ a K. HORNOCH. DX Cygni: A triple system with mass transfer. NEW ASTRONOMY. 2020, roč. 76, April, s. "101336-1"-"101336-5", 5 s. ISSN 1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2019.101336. |
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@article{49411, author = {Wolf, M. and Masek, M. and Zasche, P. and Kučáková, Hana and Hornoch, K.}, article_number = {April}, doi = {http://dx.doi.org/10.1016/j.newast.2019.101336}, keywords = {Stars: Binaries: Eclipsing; Stars: Individual: DX cyg; Stars: Fundamental parameters}, language = {eng}, issn = {1384-1076}, journal = {NEW ASTRONOMY}, title = {DX Cygni: A triple system with mass transfer}, url = {https://www.sciencedirect.com/science/article/abs/pii/S138410761930257X?via%3Dihub}, volume = {76}, year = {2020} }
TY - JOUR ID - 49411 AU - Wolf, M. - Masek, M. - Zasche, P. - Kučáková, Hana - Hornoch, K. PY - 2020 TI - DX Cygni: A triple system with mass transfer JF - NEW ASTRONOMY VL - 76 IS - April SP - "101336-1"-"101336-5" EP - "101336-1"-"101336-5" SN - 13841076 KW - Stars: Binaries: Eclipsing KW - Stars: Individual: DX cyg KW - Stars: Fundamental parameters UR - https://www.sciencedirect.com/science/article/abs/pii/S138410761930257X?via%3Dihub N2 - A dozen of new precise times of eclipses were measured for the eclipsing binary DX Cygni as a part of our long-term observational project for studying neglected eclipsing binaries with a short orbital period. Based on a current O - C diagram, we found for the first time that its period is increasing (dP/P = 1.68 X 10(-7) day/years) and that times of minima show also significant cyclical changes with a period of about 16 years, caused very probably by a third body orbiting the eclipsing pair. The minimal mass of this companion is 0.49 M-circle dot. The light curve solution in PHOEBE results to the typical Algol-type semidetached configuration where the secondary fills its Roche lobe. The temperature of primary component was fixed to T-1 = 5300 K according to its spectral type, which gives us T-2 = 3330 +/- 20 K for the secondary. The photometric mass ratio was estimated q = 0.504 +/- 0.012. We also compare orbital parameters of selected known Algol-type eclipsing binaries with proven mass transfer and a third body. ER -
WOLF, M., M. MASEK, P. ZASCHE, Hana KUČÁKOVÁ a K. HORNOCH. DX Cygni: A triple system with mass transfer. \textit{NEW ASTRONOMY}. 2020, roč.~76, April, s.~''101336-1''-''101336-5'', 5 s. ISSN~1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2019.101336.
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