Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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Light Curve Analyses of the Eclipsing Binary EROS 1010 in the Large Magellanic Cloud

대마젤란은하 식쌍성 EROS 1010의 광도곡선 분석

  • Hong, Kyeong-Soo (Dept. of Astronomy and Space Science, and Astrophysical Research Center for the Structure and Evolution of the Cosmos (ARCSEC), Sejong University) ;
  • Kang, Young-Woon (Dept. of Astronomy and Space Science, and Astrophysical Research Center for the Structure and Evolution of the Cosmos (ARCSEC), Sejong University)
  • 홍경수 (세종대학교 천문우주학과 우주구조와 진화연구센터) ;
  • 강영운 (세종대학교 천문우주학과 우주구조와 진화연구센터)
  • Published : 2009.09.15
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Abstract

We present BV light curves of EROS 1010 which is located in the central bar of the Large Magellanic Cloud. The BV light curves including BR and I light curves observed by the EROS and OGLE projects, have been analyzed using the 2005 version of the Wilson & Devinney Differential Correction program for the photometric solutions. The absolute dimensions of EROS 1010 were calculated by adopting the distance modulus of the Large Magellanic Cloud, $m-M=18.^m3{\sim}18.^m5$.

대마젤란은하 중심부에 위치한 식쌍성 EROS 1010에 대한 CCD 측광관측을 2006년과 2007년에 수행하여 BV 광도곡선을 완성하였다. BV 광도곡선은 EROS팀과 OGLE팀이 각각 관측한 BR과 I 광도곡선과 함께 Wilson & Devinney 차등보정법으로 분석하여 측광학적인 해를 제시하였다. 한편 대마젤란은하의 거리지수를 $m-M=18.^m3{\sim}18.^m5$ 사이로 가정하고, EROS 1010에 대한 절대량을 구하였다.

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References

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