星系close pair的光谱补充

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基于Xu et al. (2010)

  • 使用K波段的原因
对于不同星系光谱变化较小
主要是恒星成分,受到恒星形成和尘埃消光的影响小
  • 估计LAMOST能够补充的星系数目
Xu et al. (2010)选的K波段星系中,SDSS的红移覆盖率约为85%
目前选出星系27对54个,如果能补充未覆盖,应至少可以补充5对(27/0.85)
  • 新数据?
现有88对新选出的星系
。。。