천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제37권2호
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- Pages.68.1-68.1
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- 2012
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- 1226-2692(pISSN)
HST/WFPC2 Imaging of the Dwarf Satellites And XI and And XIII : HB Morphology and RR Lyraes
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양성철
(천문연) ;
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Yang, Soung-Chul
(Korea Astronomy and Space Science Institute) ;
- Sarajedini, Ata (Department of Astronomy, University of Florida)
- 발행 : 2012.10.17
초록
We present a comprehensive study of the stellar populations in two faint M31 dwarf satellites, And XI and And XIII. Using deep archival images from the Wide Field Planetary Camera 2 (WFPC2) onboard the Hubble Space Telepscope (HST), we characterize the horizontal branch (HB) morphologies and the RR Lyrae (RRL) populations of these two faint dwarf satellites. Our new template light curve fitting routine (RRFIT) detected RRL populations from both galaxies. The mean periods of
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