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中央研究院天文及天文物理研究所
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Clustering radius vs. specific star formation rate of z ~ 2 star forming galaxies
Image Credit: Lin et al
Clustering radius vs. specific star formation rate of z ~ 2 star forming galaxies
For galaxies with SSFR smaller than this critical point, the hosting halo mass increases, implying that the environmental quenching effect has taken place as early as z ~ 2. On the other hand, for galaxies with SSFR above the threshold, the hosting halo mass also increases, suggesting that some mechanism operating in denser environment may also boost the SFR of galaxies. (Lin et al. 2012, ApJ, 756, 71.)
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