Determination of Fundamental Properties of an M31 Globular Cluster from Main-Sequence Photometry

  title={Determination of Fundamental Properties of an M31 Globular Cluster from Main-Sequence Photometry},
  author={Jun Ma and Zhenyu Wu and Song-Yun Wang and Zhou Fan and Xu Zhou and Jiang-hua Wu and Zhao-ji Jiang and Jiansheng Chen National Astronomical Observatories and Chinese Academy of Sciences and Key Laboratory of Optical Astronomy and National Astronomical Observatories and Beijing and 100012 and China.},
  journal={Publications of the Astronomical Society of the Pacific},
  • J. Ma, Zhenyu Wu, +11 authors China.
  • Published 2010
  • Physics
  • Publications of the Astronomical Society of the Pacific
ABSTRACT.M31 globular cluster B379 is the first extragalactic cluster whose age was determined by main-sequence photometry. In the main-sequence photometric method, the age of a cluster is obtained by fitting its color-magnitude diagram (CMD) with stellar evolutionary models. However, different stellar evolutionary models use different parameters of stellar evolution, such as range of stellar masses, different opacities and equations of state, and different recipes, and so on. So, it is… Expand

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