Journal of The Korean Astronomical Society (천문학회지)

The Korean Astronomical Society (한국천문학회)
권호 표지

JK INFRARED PHOTOMETRY OF THE GLOBULAR CLUSTER M3

  • LEE SANG-GAK (Department of Astronomy, Seoul National University) ;
  • LEE MYUNG GYOON (Department of Astronomy, Seoul National University) ;
  • KIM EUNHYEUK (Department of Astronomy, Seoul National University)
  • Published : 1996.10.01
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Abstract

We have obtained the J K images of the central region of the globular cluster M3 (NGC5272), using the $256\pm256$ InSb array. We present JK photometry of bright red giant branch stars in the central $2'.2\pm2'.2$ region of M3. The infrared color-magnitude diagrams are presented. The comparison of the red giant branch of M3 with that of M13 confirms that both globular clusters have similar metal abundances.

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