A photometric study of the short-period eclipsing binary 1SWASP
J204932.94-654025.8, showing strong third light

J 2020

A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light

ZHANG, Bin, Sheng-Bang QIAN, Miloslav ZEJDA, Jing-Jing WANG, Qi-Jun ZHI et. al.

Základní údaje

Originální název

A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light

Autoři

ZHANG, Bin (garant), Sheng-Bang QIAN, Miloslav ZEJDA (203 Česká republika, domácí), Jing-Jing WANG, Qi-Jun ZHI, Ai-Jun DONG, Wei XIE, Li-Ying ZHU a Lin-Qiao JIANG

Vydání

New Astronomy, Amsterdam, Elsevier Science, 2020, 1384-1076

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.325

Kód RIV

RIV/00216224:14310/20:00116955

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.newast.2019.101324

UT WoS

000501406300007

Klíčová slova anglicky

Binary; Eclipsing binary; Orbital period; Light curves

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 16. 11. 2020 11:39, Mgr. Marie Šípková, DiS.

Anotace

V originále

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.

Citovat

ZHANG, Bin, Sheng-Bang QIAN, Miloslav ZEJDA, Jing-Jing WANG, Qi-Jun ZHI, Ai-Jun DONG, Wei XIE, Li-Ying ZHU a Lin-Qiao JIANG. A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light. New Astronomy. Amsterdam: Elsevier Science, 2020, roč. 76, APR 2020, s. 1-5. ISSN 1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2019.101324.

@article{1694584,
   author = {Zhang, Bin and Qian, ShengandBang and Zejda, Miloslav and Wang, JingandJing and Zhi, QiandJun and Dong, AiandJun and Xie, Wei and Zhu, LiandYing and Jiang, LinandQiao},
   article_location = {Amsterdam},
   article_number = {APR 2020},
   doi = {http://dx.doi.org/10.1016/j.newast.2019.101324},
   keywords = {Binary; Eclipsing binary; Orbital period; Light curves},
   language = {eng},
   issn = {1384-1076},
   journal = {New Astronomy},
   title = {A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light},
   url = {https://doi.org/10.1016/j.newast.2019.101324},
   volume = {76},
   year = {2020}
}

TY  - JOUR
ID  - 1694584
AU  - Zhang, Bin - Qian, Sheng-Bang - Zejda, Miloslav - Wang, Jing-Jing - Zhi, Qi-Jun - Dong, Ai-Jun - Xie, Wei - Zhu, Li-Ying - Jiang, Lin-Qiao
PY  - 2020
TI  - A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light
JF  - New Astronomy
VL  - 76
IS  - APR 2020
SP  - 1-5
EP  - 1-5
PB  - Elsevier Science
SN  - 13841076
KW  - Binary
KW  - Eclipsing binary
KW  - Orbital period
KW  - Light curves
UR  - https://doi.org/10.1016/j.newast.2019.101324
L2  - https://doi.org/10.1016/j.newast.2019.101324
N2  - 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.
ER  -

ZHANG, Bin, Sheng-Bang QIAN, Miloslav ZEJDA, Jing-Jing WANG, Qi-Jun ZHI, Ai-Jun DONG, Wei XIE, Li-Ying ZHU a Lin-Qiao JIANG. A photometric study of the short-period eclipsing binary 1SWASP J204932.94-654025.8, showing strong third light. \textit{New Astronomy}. Amsterdam: Elsevier Science, 2020, roč.~76, APR 2020, s.~1-5. ISSN~1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2019.101324.

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