천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제39권1호
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- Pages.36.1-36.1
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- 2014
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- 1226-2692(pISSN)
On the Origin of the Correlation between Hubble Residual and Mass of the Type Ia Supernova Host Galaxies
- Kang, Yijung (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University) ;
- Kim, Young-Lo (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University) ;
- Lim, Dongwook (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University) ;
- Chung, Chul (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University) ;
- Lee, Young-Wook (Center for Galaxy Evolution Research and Department of Astronomy, Yonsei University)
- 발행 : 2014.04.10
초록
The correlation between mass of Type Ia Supernova (SN Ia) host galaxies and Hubble residual is now well-established. The origin of this relation, however, is yet to be understood. We have used low-resolution spectra of early-type hosts from YONSEI (YOnsei Nearby Supernovae Evolution Investigation) project to measure central velocity dispersion and Lick/IDS absorption indices. By using the Evolutionary Population Synthesis (EPS) models, luminosity-weighted mean age and metallicity of host galaxies were determined from
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