A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00116955" target="_blank" >RIV/00216224:14310/20:00116955 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.newast.2019.101324" target="_blank" >https://doi.org/10.1016/j.newast.2019.101324</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.newast.2019.101324" target="_blank" >10.1016/j.newast.2019.101324</a>
Alternative languages
Result language
angličtina
Original language name
A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light
Original language description
1SWASP J204932.94-654025.8 (hereafter J2049) is a newly discovered eclipsing binary system with an orbital period of 0.2299103 days. BVRc light curves (LCs) are presented and analyzed by using the 2013 version of the Wilson-Devinney (W-D) program. Because the observed LCs are asymmetric, a hot star-spot was employed on the secondary component during our analysis. We found that 32049 is a W-subtype shallow contact eclipsing binary system with an orbit inclination of 62.69 +/- 0.95 and a mass ratio of q =1.326 +/- 0.056. More importantly, we found the presence of a strong third light, with an average luminosity contribution of 31.3% of the total light. Based on times of the light minima, the orbital period changes of J2049 are studied for the first time, and there is no evidence for any significant dp/dt now. Considering the presence of the third light and the short time span of the eclipse times, more observations are needed in the future.
Czech name
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Czech description
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Classification
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)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
New Astronomy
ISSN
1384-1076
e-ISSN
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Volume of the periodical
76
Issue of the periodical within the volume
APR 2020
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
5
Pages from-to
1-5
UT code for WoS article
000501406300007
EID of the result in the Scopus database
2-s2.0-85074876964