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서지반출
Morphology-Dependent Evolution of Galaxies in Mid-infrared Green Valley
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  • Morphology-Dependent Evolution of Galaxies in Mid-infrared Green Valley
  • Morphology-Dependent Evolution of Galaxies in Mid-infrared Green Valley
저자명
이광호,이명균,손주비,Lee. Gwang-Ho,Lee. Myung Gyoon,Sohn. Jubee
간행물명
천문학회보
권/호정보
2014년|39권 2호|pp.48-48 (1 pages)
발행정보
한국천문학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

We investigate the evolution of galaxies in mid-infrared (MIR) $[3.4{mu}m]-[12{mu}m]$ color versus $12{mu}$ luminosity diagram using Wide-field Infrared Survey Explorer data for member galaxies of the A2199 supercluster at $z{simeq}0.03$. In the MIR color-luminosity diagram, we classify galaxies into three MIR classes: MIR blue cloud (massive, quiescent and mostly early-type), MIR star-forming sequence (mostly late-type), and MIR green valley galaxies. Both MIR green valley galaxies and MIR blue cloud galaxies are optically red sequence populations, and there is no significant difference in star formation rates and stellar masses between them. We compare cumulative distribution functions of surface galaxy number density and of cluster/group-centric distance between three MIR classes. However, when considering only early-type galaxies, the difference between MIR blue cloud galaxies and MIR green valley galaxies disappears. In contrast, the intermediate trend of MIR green valley galaxies is still found for late-type galaxies. We discuss our results concerning the difference of evolution between early- and late-type galaxies and the connection to environment.