| New Variable Stars Discovered as By-product of the Beijing Astronomical Observatory Supernova Survey |
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| 作者姓名： | Min-Zhi Kong Jin-Song Deng |
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| 作者单位： | Min-Zhi Kong，Yu-Lei Qiu，Chuan-Jian Shen，Jin-Song Deng，Bo Zhang and Jing-Yao Hu1 National Astronomical Observatories，Chinese Academy of Sciences，Beijing 1000122 Department of Physics，Heibei Normal University，Shijiazhuang 0500163 Research Center for the Early Universe，Univ. of Tokyo，Bunkyo-Ku，Tokyo，Japan4 Department of Astronomy，Univ. of Tokyo，Bunkyo-Ku，Tokyo，Japan |
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| 基金项目： | This project was partly supported by the National Natural Science Foundation of China and the grant NKBRSF G19990754. |
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| 摘 要： | The Beijing Astronomical Observatory (BAO) 0.6 m telescope has been used for nearby supernova survey in more than 3000 fields, covering a total area of 235 deg2. More than 260000 CCD images have been collected since April 1996, with 45 supernovae discovered. We searched for variables in about 90000 images taken during 1996-1998. For the fields in which long period variables (LPVs) were discovered, we reduced further images taken from 1999 to 2000, for the period estimation. Among the 280000 stars selected from the survey fields, i.e., brighter than 18 mag, we discovered seven new LPVs and reconfirmed three known LPVs. Additionally, we found 146 variable star candidates, and reconfirmed about 20 previously known or suspected objects.
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| 关 键 词： | 恒星 北京天文台 望远镜 CCD 电感耦合图像 |
New Variable Stars Discovered as By-product of the Beijing Astronomical Observatory Supernova Survey |
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| Min-Zhi Kong,Yu-Lei Qiu,Chuan-Jian Shen,Jin-Song Deng,Bo Zhang,Jing-Yao Hu.New Variable Stars Discovered as By-product of the Beijing Astronomical Observatory Supernova Survey[J].Chinese Journal of Astronomy and Astrophysics,2002,2(5):463-473. |
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| Authors: | Min-Zhi Kong Yu-Lei Qiu Chuan-Jian Shen Jin-Song Deng Bo Zhang Jing-Yao Hu |
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| Institution: | [1]NationalAstronomicalObservatories,ChineseAcademyofSciences,Beijing100012 [2]ResearchCenterfortheEarlyUniverse,Univ.ofTokyo,Bunkyo-Ku,Tokyo,Japan |
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| Abstract: | The Beijing Astronomical Observatory (BAO) 0.6m telescope has been used for nearby supernova survey in more than 3000 fields,covering a total area of 235 deg^2,More than 260000 CCD images have been collected since April 1996,with 45 supernovae discovered,We searched for variables in about 90 000images taken during 1996-1998.For the fileds in which long period variables(LPVs) were discovered,we reduced further images taken from 1999 to 2000,for the period estimation.Among the 280000stars selected from the survey fileds,i.e., brighter than 18mag,we discovered seven new LPVs and reconfirmed three known LPVs.Additionally,we found 146 variable star candidates,and reconfirmed about 20 previously known or suspected objects. |
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| Keywords: | stars: variables - supernovae - surveys |
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