천문학회보 (The Bulletin of The Korean Astronomical Society)

한국천문학회 (The Korean Astronomical Society)
권호 표지

Multiple stellar populations in the classical bulge

  • Lee, Young-Wook (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University) ;
  • Jang, Sohee (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University) ;
  • Kim, Jaeyeon (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University) ;
  • Joo, Seok-Joo (Korea Astronomy and Space Science Institute) ;
  • Chung, Chul (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University)
  • 발행 : 2016.04.12
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초록

The presence of multiple stellar populations is now well established in most globular clusters in the Milky Way. Here we show that two populations of RR Lyrae stars and the double red clump observed in the Milky Way bulge are another manifestations of the same multiple population phenomenon observed in halo globular clusters. We will discuss the implications of this result on the stellar populations and formation of early-type galaxies.

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