Bulletin of the Korean Space Science Society (한국우주과학회:학술대회논문집(한국우주과학회보))

The Korean Space Science Society (한국우주과학회)
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New CCD BVR Photometric Studies of the Contact Binary GW Cephei

  • Song, Mi-Hwa (Department of Astronomy & Space Science, Chungbuk National University, & Chungbuk National University Observatory) ;
  • Kim, Chun-Hwey (Department of Astronomy & Space Science, Chungbuk National University, & Chungbuk National University Observatory) ;
  • Yoon, Joh-Na (Department of Astronomy & Space Science, Chungbuk National University, & Chungbuk National University Observatory) ;
  • Jeoung, Taek-Soo (Department of Astronomy & Space Science, Chungbuk National University, & Chungbuk National University Observatory) ;
  • Kim, Young-Jae (Department of Astronomy & Space Science, Chungbuk National University, & Chungbuk National University Observatory) ;
  • Kim, Jung-Yeb (Department of Astronomy & Space Science, Chungbuk National University, & Chungbuk National University Observatory)
  • Published : 2010.04.15
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Abstract

The BVR CCD observations of the solar-type contact binary GW Cephei, known as very active dynamically and photometrically, has been made for 20 nights from Nov. 03, 2008 to Dec. 31, 2008 with 1-m reflector of Jincheon station of Chungbuk National University Observatory. A total of 2035 measurements (B: 647, V: 722, R: 666) were obtained to secure new multi-color light curves. From our observations fifteen times of minimum light were newly determined. In this paper both a new period study and an intensive light synthesis were made. Our results will be compared and discussed with the latest thorough studies of the system by Lee et al. (2010).

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