Journal of The Korean Astronomical Society (천문학회지)
- Volume 29 Issue spc1
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- Pages.137-138
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- 1996
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- 1225-4614(pISSN)
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- 2288-890X(eISSN)
BLUE STRAGGLER STARS IN THE GLOBULAR CLUSTER M53
- REY SOO-CHANG (Astronomy Program, Yonsei University) ;
-
LEE YOUNG-WOOK
(Astronomy Program, Yonsei University)
;
- CHUN MUN-SUK (Astronomy Program, Yonsei University) ;
- BYUN YONG-IK (Graduate Institute of Astronomy, National Central University)
- Published : 1996.12.01
Abstract
The first large-format CCD color-magnitude diagram (CMD) in the B and V passbands is presented for the Galactic globular cluster M53 (NGC 5024). We have discovered 117 new blue straggler (BS) candidates in the field of M53. The analysis of bright BS stars (V <19.0) clearly shows a bimodal radial distribution, with a high frequency in the inner and outer regions. The distribution is similar to that found in M3, a globular cluster with similar central density and concentration.