| Discovery of Four Peculiar Variable Stars |
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| 作者姓名： | Xiao-Bin Zhang Rong-Xian Zhang
National Astronomical Observatories Chinese Academy of Sciences Beijing xzhang@bao. ac. cn
CAS-PKU Joint Beijing Astrophysics Center Beijing |
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| 作者单位： | Xiao-Bin Zhang Rong-Xian Zhang
1National Astronomical Observatories，Chinese Academy of Sciences，Beijing 100012; xzhang@bao. ac. cn
2CAS-PKU Joint Beijing Astrophysics Center，Beijing 100871 |
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| 基金项目： | National Natural Science Foundation of China. |
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| 摘 要： | Four stars, GSC 1258-0143, GSC 1986-1665, GSC 3045-0892 and GSC 2983-1597 were found to be new variables during a campaign of CCD photometric monitoring of short-period eclipsing binary stars. The variabilities of these new variables are reported. The main characteristics and probable classifications of the variables are discussed through a preliminary analysis on their light curves. Among these stars, GSC 1258-0143 is classified as a RR Lyr star of sub-type a. Its pulsation period is determined to be about 0.5206 days. The other three stars, are definite variables, but their periods and types of light variations remain unknown.
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| 关 键 词： | 特殊恒星 恒星物理学 变星 光度测量 天琴RR型星 |
Discovery of Four Peculiar Variable Stars |
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| Xiao-Bin Zhang Rong-Xian Zhang
National Astronomical Observatories,Chinese Academy of Sciences,Beijing , xzhang@bao. ac. cn
CAS-PKU Joint Beijing Astrophysics Center,Beijing .Discovery of Four Peculiar Variable Stars[J].Chinese Journal of Astronomy and Astrophysics,2003,3(4):311-315. |
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| Authors: | Xiao-Bin Zhang Rong-Xian Zhang |
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| Institution: | [1]CAS-PKUJointBeijingAstrophysicsCenter,Beijing100871 [2]NationalAstronomicalObservatories,ChineseAcademyofSciences,Beijing100012 |
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| Abstract: | Four stars, GSC 1258-0143, GSC 1986-1665, GSC 3045-0892 and GSC 2983-1597 were found to be new variables during a campaign of CCD photometric monitoring of short-period eclipsing binary stars.The variabilities of these new variables are reported. The main characteristics and probable classifications of the variables are discussed through a preliminary analysis on their light curves. Amongthese stars, GSC 1258-0143 is classified as a RR Lyr star of sub-type a. Its pulsation period is determined to be about 0.5206 days. The other three stars, are definite variables, but their periods and types of light variations remain unknown. |
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| Keywords: | techniques: photometric-stars: variables: RR Lyr - stars: individual: GSC 1258-0143 GSC 1986-1665 GSC 3045-0892 GSC 2983-1597 |
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