RADIAL COLOR GRADIENT IN A GLOBULAR CLUSTER 1. M68

  • Yi, Su-Kyoung (Department of Astronomy & Atmosperic Science Yonsei University) ;
  • Chun, Mun-Suk (Department of Astronomy & Atmosperic Science Yonsei University)
  • Published : 1990.12.01

Abstract

Stars in M 68 from the observed-magnitude diagrams with CCD were integrated to find any radial gradient. The result shows that M 68 has a slightly bluer core. The main cause of these calculated radial color variations seems to come from the random distribution of ginants.

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