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The Redshift and Metallicity of the Host Galaxy of Dark GRB 080325 at z=1.78
Tetsuya Hashimoto, Daniel A. Perley, Kouji Ohta +5
We present near-infrared spectroscopy of the host galaxy of dark GRB 080325 using Subaru/MOIRCS. The obtained spectrum provides a clear detection of H emission and marginal [NII…
NIR spectroscopic observation of massive galaxies in the protocluster at z = 3.09
Mariko Kubo, Toru Yamada, Takashi Ichikawa +3
We present the results of near-infrared spectroscopic observations of the -band selected candidate galaxies in the protocluster at in the SSA22 field. We observed 67 ca…
Correlation between star formation activity and electron density of ionized gas at z=2.5
Rhythm Shimakawa, Tadayuki Kodama, Charles C. Steidel +7
In the redshift interval of , the physical conditions of the inter-stellar medium (ISM) in star-forming galaxies are likely to be different from those in the local Universe…
An early phase of environmental effects on galaxy properties unveiled by near-infrared spectroscopy of protocluster galaxies at z>2
Rhythm Shimakawa, Tadayuki Kodama, Ken-ichi Tadaki +3
This work presents the results from our near-infrared spectroscopy of narrow-band selected H emitters (HAEs) in two rich over-densities (PKS 1138-262 at and USS 1558-003…
The environmental impacts on the star formation main sequence: an H-alpha study of the newly discovered rich cluster at z=1.52
Yusei Koyama, Tadayuki Kodama, Ken-ichi Tadaki +3
We report the discovery of a strong over-density of galaxies in the field of a radio galaxy at z=1.52 (4C65.22) based on our broad-band and narrow-band (H-alpha) photometry with Su…
Identification of the progenitors of rich clusters and member galaxies in rapid formation at z>2
Rhythm Shimakawa, Tadayuki Kodama, Ken-ichi Tadaki +3
We present the results of near-infrared spectroscopy of H emitters (HAEs) associated with two protoclusters around radio galaxies (PKS1138-262 at =2.2 and USS1558-003 at =…