Mariko Kubo   Hideki Umehata   Yuichi Matsuda   Masaru Kajisawa   Charles C. Steidel   Toru Yamada   Ichi Tanaka   Bunyo Hatsukade   Yoichi Tamura   Kouichiro Nakanishi   Kotaro Kohno   Kianhong Lee   Keiichi Matsuda   
Astrophysical Journal 919(1) 2021年9月
We report a massive quiescent galaxy at zspec= -3.0922+0.008-0.004 spectroscopically confirmed at a protocluster in the SSA22 field by detecting the Balmer and Ca II absorption features with the multi-object spectrometer for infrared exploration o...