First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503

AST3-1 is the second-generation optical photometric telescope at Dome A in Antarctica. In this study, photometric solutions of three eclipsing binaries comprising AST19571, AST21541, and AST38503 were determined for the first time using the light curves obtained with AST3-1. The light curves for the...

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Published in:New Astronomy
Main Authors: Shi XD(施相东), Qian SB(钱声帮), Zhang J(张嘉), Soonthornthum, Boonrucksar, Sarotsakulchai, Thawicharat, Zhou X(周肖)
Format: Article in Journal/Newspaper
Language:English
Published: ELSEVIER SCIENCE BV 2019
Subjects:
Online Access:http://ir.ynao.ac.cn/handle/114a53/20557
http://ir.ynao.ac.cn/handle/114a53/20558
https://www.sciencedirect.com/science/article/pii/S1384107619301186?via%3Dihub
https://doi.org/10.1016/j.newast.2019.04.007
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spelling ftchinacadscynao:oai:ir.ynao.ac.cn:114a53/20558 2023-07-02T03:29:44+02:00 First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503 Shi XD(施相东) Qian SB(钱声帮) Zhang J(张嘉) Soonthornthum, Boonrucksar Sarotsakulchai, Thawicharat Zhou X(周肖) 2019-10-01 http://ir.ynao.ac.cn/handle/114a53/20557 http://ir.ynao.ac.cn/handle/114a53/20558 https://www.sciencedirect.com/science/article/pii/S1384107619301186?via%3Dihub https://doi.org/10.1016/j.newast.2019.04.007 英语 eng ELSEVIER SCIENCE BV NEW ASTRONOMY http://ir.ynao.ac.cn/handle/114a53/20557 http://ir.ynao.ac.cn/handle/114a53/20558 https://www.sciencedirect.com/science/article/pii/S1384107619301186?via%3Dihub doi:10.1016/j.newast.2019.04.007 Close-binaries Eclipsing-binaries Individual (AST19571 AST21541 and AST38503) 天文学 天文学::恒星与银河系 天文学::恒星与银河系::恒星天文学 理学 理学::天文学 Astronomy & Astrophysics LIGHT STARS Article 期刊论文 2019 ftchinacadscynao https://doi.org/10.1016/j.newast.2019.04.007 2023-06-09T00:18:43Z AST3-1 is the second-generation optical photometric telescope at Dome A in Antarctica. In this study, photometric solutions of three eclipsing binaries comprising AST19571, AST21541, and AST38503 were determined for the first time using the light curves obtained with AST3-1. The light curves for the three binaries in the Galactic disk field were analyzed with the Wilson-Devinney method. We found that AST19571 and AST21541 are intermediate-contact binary systems with fill-out factors of f = 39.9(+/- 5.4) % and 36.4(+/- 4.7) %, respectively, and their mass ratios were determined as q = 0.275(+/- 0.0034) and 0.25(+/- 0.0024). AST38503 was shown to be a deep-contact binary system with a degree of contact of f = 66(+/- 33)% and a mass ratio of q = 0.314(+/- 0.03). Some light minimum times were derived for the three contact binary stars. The results showed that the period of AST19571 is increasing at a rate of dp/dt = +4.71 x 10(-7). This increase in the period could be explained by mass transfer between the components. The absolute parameters were estimated for the components of the three binaries. Article in Journal/Newspaper Antarc* Antarctica Yunnan Observatories: YNAO OpenIR (Chinese Academy of Sciences, CAS) New Astronomy 72 28 35
institution Open Polar
collection Yunnan Observatories: YNAO OpenIR (Chinese Academy of Sciences, CAS)
op_collection_id ftchinacadscynao
language English
topic Close-binaries
Eclipsing-binaries
Individual (AST19571 AST21541 and AST38503)
天文学
天文学::恒星与银河系
天文学::恒星与银河系::恒星天文学
理学
理学::天文学
Astronomy & Astrophysics
LIGHT
STARS
spellingShingle Close-binaries
Eclipsing-binaries
Individual (AST19571 AST21541 and AST38503)
天文学
天文学::恒星与银河系
天文学::恒星与银河系::恒星天文学
理学
理学::天文学
Astronomy & Astrophysics
LIGHT
STARS
Shi XD(施相东)
Qian SB(钱声帮)
Zhang J(张嘉)
Soonthornthum, Boonrucksar
Sarotsakulchai, Thawicharat
Zhou X(周肖)
First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503
topic_facet Close-binaries
Eclipsing-binaries
Individual (AST19571 AST21541 and AST38503)
天文学
天文学::恒星与银河系
天文学::恒星与银河系::恒星天文学
理学
理学::天文学
Astronomy & Astrophysics
LIGHT
STARS
description AST3-1 is the second-generation optical photometric telescope at Dome A in Antarctica. In this study, photometric solutions of three eclipsing binaries comprising AST19571, AST21541, and AST38503 were determined for the first time using the light curves obtained with AST3-1. The light curves for the three binaries in the Galactic disk field were analyzed with the Wilson-Devinney method. We found that AST19571 and AST21541 are intermediate-contact binary systems with fill-out factors of f = 39.9(+/- 5.4) % and 36.4(+/- 4.7) %, respectively, and their mass ratios were determined as q = 0.275(+/- 0.0034) and 0.25(+/- 0.0024). AST38503 was shown to be a deep-contact binary system with a degree of contact of f = 66(+/- 33)% and a mass ratio of q = 0.314(+/- 0.03). Some light minimum times were derived for the three contact binary stars. The results showed that the period of AST19571 is increasing at a rate of dp/dt = +4.71 x 10(-7). This increase in the period could be explained by mass transfer between the components. The absolute parameters were estimated for the components of the three binaries.
format Article in Journal/Newspaper
author Shi XD(施相东)
Qian SB(钱声帮)
Zhang J(张嘉)
Soonthornthum, Boonrucksar
Sarotsakulchai, Thawicharat
Zhou X(周肖)
author_facet Shi XD(施相东)
Qian SB(钱声帮)
Zhang J(张嘉)
Soonthornthum, Boonrucksar
Sarotsakulchai, Thawicharat
Zhou X(周肖)
author_sort Shi XD(施相东)
title First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503
title_short First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503
title_full First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503
title_fullStr First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503
title_full_unstemmed First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503
title_sort first photometric investigations of three eclipsing binaries: ast19571, ast21541, and ast38503
publisher ELSEVIER SCIENCE BV
publishDate 2019
url http://ir.ynao.ac.cn/handle/114a53/20557
http://ir.ynao.ac.cn/handle/114a53/20558
https://www.sciencedirect.com/science/article/pii/S1384107619301186?via%3Dihub
https://doi.org/10.1016/j.newast.2019.04.007
genre Antarc*
Antarctica
genre_facet Antarc*
Antarctica
op_relation NEW ASTRONOMY
http://ir.ynao.ac.cn/handle/114a53/20557
http://ir.ynao.ac.cn/handle/114a53/20558
https://www.sciencedirect.com/science/article/pii/S1384107619301186?via%3Dihub
doi:10.1016/j.newast.2019.04.007
op_doi https://doi.org/10.1016/j.newast.2019.04.007
container_title New Astronomy
container_volume 72
container_start_page 28
op_container_end_page 35
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