DX Cygni: A triple system with mass transfer

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00539334" target="_blank" >RIV/67985815:_____/20:00539334 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/20:00539334 RIV/47813059:19630/20:A0000083 RIV/00216208:11320/20:10422465
Result on the web
<a href="https://doi.org/10.1016/j.newast.2019.101336" target="_blank" >https://doi.org/10.1016/j.newast.2019.101336</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.newast.2019.101336" target="_blank" >10.1016/j.newast.2019.101336</a>

Result language
angličtina
Original language name
DX Cygni: A triple system with mass transfer
Original language description
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 diagram, we found for the first time that its period is increasing ( 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 Ms. 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 K according to its spectral type, which gives us K for the secondary. The photometric mass ratio was estimated . We also compare orbital parameters of selected known Algol-type eclipsing binaries with proven mass transfer and a third body.n
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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