Fundamental parameters of 318 contact binaries from the TESS survey
文献类型:期刊论文
作者 | Ding X(丁旭)3,4,5,6; Ji KF(季凯帆)3,4,5,6; Li, Xuzhi1,2; Xiong JP(熊建萍)3,4,5,6; Cheng QY(程其原)3,4,5,6; Wang JL(王锦良)3,4,5,6 |
刊名 | Monthly Notices of the Royal Astronomical Society |
出版日期 | 2023-11-01 |
卷号 | 525期号:3页码:4596-4610 |
ISSN号 | 0035-8711 |
关键词 | methods: data analysis binaries: eclipsing stars: fundamental parameters |
DOI | 10.1093/mnras/stad2565 |
产权排序 | 第1完成单位 |
文献子类 | Journal article (JA) |
英文摘要 | The TESS Survey has released a large number of high-precision light curves of contact binaries. However, using the Phoebe program and Markov chain Monte Carlo (MCMC) algorithm to obtain the posterior distribution of contact binary parameters is a time-consuming process. In order to obtain the contact binary parameters from the TESS survey, we build neural network (NN) models and combine them with the MCMC algorithm to obtain the contact binary parameters and parameter errors quickly. NN model is used in place of the physical model, which can generate a light curve with a precision of less than a millimagnitude. The NN model is capable of generating light curves at a speed that is four orders of magnitude faster than Phoebe running on the same computing platform. In this study, we have determined the parameters of 318 contact binary systems exhibiting relatively symmetric light curves. Subsequently, a statistical analysis was conducted on the derived parameters of these 318 targets. The coefficient of determination (R2) for 318 contact binaries between the light curves generated by Phoebe using these parameters obtained by the NN model and MCMC as inputs and the original light curves is greater than 0.99. Additionally, the distribution and correlation of the parameters for these 318 contact binary systems have been presented. © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. |
学科主题 | 天文学 ; 恒星与银河系 |
URL标识 | 查看原文 |
资助项目 | National Natural Science Foundation of China[12103088] ; Chinese Academy of Sciences[E129080101] ; National Key Research and Development Program of China[2022YFF0711500] |
语种 | 英语 |
出版者 | Oxford University Press |
资助机构 | National Natural Science Foundation of China[12103088] ; Chinese Academy of Sciences[E129080101] ; National Key Research and Development Program of China[2022YFF0711500] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26327] |
专题 | 云南天文台_丽江天文观测站(南方基地) 云南天文台_大样本恒星演化研究组 云南天文台_中国科学院天体结构与演化重点实验室 天文技术实验室 |
作者单位 | 1.School of Astronomy and Space Science, University of Science and Technology of China, Hefei, Anhui, 230026, China 2.Deep Space Exploration Laboratory / Department of Astronomy, University of Science and Technology of China, Hefei, 230026, China; 3.University of the Chinese Academy of Sciences, Yuquan Road 19#, Shijingshan Block, Beijing, 100049, China; 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China; 5.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P. O. Box 110, Kunming, 650216, China; 6.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, Kunming, 650216, China; |
推荐引用方式 GB/T 7714 | Ding X,Ji KF,Li, Xuzhi,et al. Fundamental parameters of 318 contact binaries from the TESS survey[J]. Monthly Notices of the Royal Astronomical Society,2023,525(3):4596-4610. |
APA | Ding X,Ji KF,Li, Xuzhi,Xiong JP,Cheng QY,&Wang JL.(2023).Fundamental parameters of 318 contact binaries from the TESS survey.Monthly Notices of the Royal Astronomical Society,525(3),4596-4610. |
MLA | Ding X,et al."Fundamental parameters of 318 contact binaries from the TESS survey".Monthly Notices of the Royal Astronomical Society 525.3(2023):4596-4610. |
入库方式: OAI收割
来源:云南天文台
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