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相关论文: Physical Parameters of 146 Contact Binaries Derive…

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Multi-band photometric observations of eleven totally eclipsing contact binaries were carried out. Applying the Wilson-Devinney program, photometric solutions were obtained. There are two W-subtype systems, which are CRTS J133031.1+161202…

太阳与恒星天体物理 · 物理学 2023-01-18 Xin-Yi Liu , Kai Li , Raul Michel , Xiang Gao , Xing Gao , Fei Liu , Shi-Peng Yin , Xi Wang , Guo-You Sun

In the era of astronomical big data, more than one million contact binaries have been discovered. Traditional approaches of light curve analysis are inadequate for investigating such an extensive number of systems. This paper builds on…

太阳与恒星天体物理 · 物理学 2025-02-25 Kai Li , Li-Heng Wang

Multi-band (B, V and R) photometric and spectroscopic observations of six poorly studied contact binaries carried out at the Western Sydney University and Las Cumbres Observatory were analysed using a recent version of the Wilson-Devenney…

This paper presents the results of a combined spectroscopic and photometric study of 20 contact binary systems: HV Aqr, OO Aql, FI Boo, TX Cnc, OT Cnc, EE Cet, RWCom, KR Com, V401 Cyg, V345 Gem, AK Her, V502 Oph, V566 Oph, V2612 Oph, V1363…

The photometric and spectroscopic studies of six contact binaries were performed for the first time. The orbital periods of all the six targets are longer than 0.5d, and we discovered that their mass ratios are smaller than 0.15. So, they…

太阳与恒星天体物理 · 物理学 2025-05-08 Fei Liu , Kai Li , Xiang Gao , Jing-Yi Wang , Xin Xu , Yi-Fan Wang , Cheng-Yu Wu , Mu-Zi-Mei Li , Xing Gao , Guo-You Sun

The photometric and spectroscopic investigations of ten contact binaries were presented for the first time. It is discovered that the mass ratios of all the ten targets are smaller than 0.15, they are extremely low mass ratio contact…

太阳与恒星天体物理 · 物理学 2022-10-26 Kai Li , Xiang Gao , Xin-Yi Liu , Xing Gao , Ling-Zhi Li , Xu Chen , Guo-You Sun

Starting from more than 11,200 short-period (less than 0.5 days) EW-type eclipsing binary candidates with the All-Sky Automated Survey for Supernovae (ASAS-SN) V-band light curves, we use MCMC and neural networks (NNs) to obtain the mass…

太阳与恒星天体物理 · 物理学 2024-01-30 Xu-Zhi Li , Qing-Feng Zhu , Xu Ding , Xiao-Hui Xu , Hang Zheng , Jin-Sheng Qiu , Ming-Chao Liu

Contact binary star systems represent the long-lived penultimate phase of binary evolution. Population statistics of their physical parameters inform understanding of binary evolutionary pathways and end products. We use light curves and…

太阳与恒星天体物理 · 物理学 2022-08-31 Henry A. Kobulnicky , Lawrence A. Molnar , Evan M. Cook , Lauren E. Henderson

We present a detailed light curve analysis of publicly available V band observations of 62 binary stars, mostly contact binaries, obtained by the All Sky Automated Survey (ASAS)-3 project between 2000 and 2009. Eclipsing binaries are…

太阳与恒星天体物理 · 物理学 2015-05-20 Sukanta Deb , Harinder P. Singh

We performed photometric and spectroscopic investigations of NSVS 5029961 for the first time. The new BV(RI)$_c$-band light curves were obtained with the 1.0-m telescope at Weihai Observatory of Shandong University. Applying the…

太阳与恒星天体物理 · 物理学 2021-07-07 Shu-Yue Zheng , Kai Li , Qi-Qi Xia

With the development of wide-field surveys, a large amount of data on short-period W UMa contact binaries have been obtained. Continuous and uninterrupted light curves as well as high-resolution spectroscopic data are crucial in determining…

Reanalyzing contact binaries with space-based photometric data and investigating possible parameter changes can yield accurate samples for theoretical studies. We investigated light curve solutions and fundamental parameters for twenty…

太阳与恒星天体物理 · 物理学 2024-05-30 Ehsan Paki , Atila Poro

We performed photometric and spectroscopic studies of three large amplitude contact binaries, NSVS 2418361, ATLAS J057.1170+31.2384 and NSVS 7377875. The amplitudes of three systems' light curves are more than 0.7 magnitude. We analyzed the…

太阳与恒星天体物理 · 物理学 2024-12-03 Xin Xu , Kai Li , Fei Liu , Qian-Xue Yan , Yi-Fan Wang , Xin-Yu Cui , Jing-Yi Wang , Xing Gao , Guo-You Sun , Cheng-Yu Wu , Mu-Zi-Mei Li

The study reports photometric and spectroscopic observations of two recently recognised contact binary systems. Both systems show total eclipses and analysis of the light curves indicate both have a very low mass ratios of less than 0.3. We…

太阳与恒星天体物理 · 物理学 2023-10-05 Surjit S. Wadhwa , Jelena Petrovic , Nick F. H. Tothill , Ain Y. De Horta , Miroslav D. Filipovic , Gojko Djuraševic

The photometric analysis and spectroscopic study of the long period low mass ratio deep contact binary KN Per were executed. The light curves of BV(RI)$_c$-band were from the Ningbo Bureau of Education and Xinjiang Observatory Telescope…

太阳与恒星天体物理 · 物理学 2022-12-07 Xin-Yi Gao , Kai Li , Ya-Wen Cai , Ya-Ni Guo , Xing Gao , Xi Wang , Shi-Peng Yin , Fei Liu , Guo-You Sun

We present the results of the study of the contact binary system BO CVn. We have obtained physical parameters of the components based on combined analysis of new, multi-color light curves and spectroscopic mass ratio. This is the first time…

太阳与恒星天体物理 · 物理学 2012-04-23 S. Zola , R. H. Nelson , V. Senavci , T. Szymanski , A. Kuzmicz , M. Winiarski , D. Jableka

The multi-color passband CCD light curves of ASAS J124343+1531.7 and LINEAR 2323566 were first obtained by the 0.84-m Ritchey-Chr\'{e}tien telescope with follow up observations by the WIYN 0.90m Cassegrain telescope. The data from the…

太阳与恒星天体物理 · 物理学 2021-06-23 Qiqi Xia , Raul Michel , Kai Li , Jesus Higuera

We present the TESS and BVRcIc light curves solution of four low mass-ratio contact binary systems TIC 159102550), V1068 Her, MW Pav and TIC 321576458. Except MW Pav, all three systems have been studied for the first time. The period…

太阳与恒星天体物理 · 物理学 2024-06-11 Ahmed Waqas Zubairi , Zhao Ergang , Qian Shengbang , Zhou Xiao , Eduardo Fernández Lajús

Multi band photometry and light curve analysis for two newly recognized contact binary systems, TYC 6995-813-1 and NSVS 13602901 are presented. Both were found to be of extreme low mass ratios 0.11 and 0.17, respectively. The secondary…

太阳与恒星天体物理 · 物理学 2021-11-17 Surjit S Wadhwa , Nick F H Tothill , Ain Y DeHorta , Miroslav Filipovic
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