THE FORMATION OF THE MASSIVE GALAXIES IN THE SSA22 z = 3.1 PROTOCLUSTER

@article{Kubo2013THEFO,
  title={THE FORMATION OF THE MASSIVE GALAXIES IN THE SSA22 z = 3.1 PROTOCLUSTER},
  author={Mariko Kubo and Yuka Katsuno Uchimoto and Toru Yamada and Masaru Kajisawa and Takashi Ichikawa and Y. Matsuda and Masayuki Akiyama and Tomoki Hayashino and Mihoko Konishi and T. Nishimura and Koji Omata and Ryuji Suzuki and I. Tanaka and Tomohiro Yoshikawa and David M. Alexander and G. G. Fazio and J.-S. Huang and Bret D. Lehmer},
  journal={The Astrophysical Journal},
  year={2013},
  volume={778}
}
We study the properties of K-band-selected galaxies (KAB < 24) in the z = 3.09 SSA22 protocluster field. 430 galaxies at 2.6 < zphot < 3.6 are selected as potential protocluster members in a 112 arcmin2 area based on their photometric redshifts. We find that ≈20% of the massive galaxies with stellar masses >1011 M☉ at zphot ∼ 3.1 have colors consistent with those of quiescent galaxies with ages >0.5 Gyr. This fraction increases to ≈50% after correcting for unrelated foreground/background… 

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