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Massive starburst galaxies in a z=2.16 proto-cluster unveiled by panoramic H-alpha mapping
Yusei Koyama, Tadayuki Kodama, Ken-ichi Tadaki +5
We present a panoramic narrow-band study of H-alpha emitters in the field of the z=2.16 proto-cluster around PKS1138-262 using MOIRCS on the Subaru Telescope. We find 83 H-alpha em…
An X-ray Detected Group of Quiescent Early-type Galaxies at z=1.6 in the Chandra Deep Field South
Masayuki Tanaka, Alexis Finoguenov, Mohammad Mirkazemi +6
(Abridged) We report the discovery of an X-ray group of galaxies located at a high redshift of z=1.61 in the Chandra Deep Field South. The group is first identified as an extended…
The Baryon Oscillation Spectroscopic Survey of SDSS-III
Kyle S. Dawson, David J. Schlegel, Christopher P. Ahn +162
The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in the clustering of matter over a larger volume than the…
Early-type galaxies at z = 1.3. I. The Lynx supercluster: cluster and groups at z=1.3. Morphology and color-magnitude relation
Simona Mei, S. Adam Stanford, Brad P. Holden +18
We confirm the detection of 3 groups in the Lynx supercluster, at z~1.3, and give their redshifts and masses. We study the properties of the group galaxies as compared to the centr…
Extended X-ray emission from non-thermal sources in the COSMOS field: A detailed study of a large radio galaxy at z=1.168
Vibor Jelic, Vernesa Smolcic, Alexis Finoguenov +5
X-ray selected galaxy group samples are usually generated by searching for extended X- ray sources that reflect the thermal radiation of the intragroup medium. On the other hand, l…
A large scale structure traced by [OII] emitters hosting a distant cluster at z=1.62
Ken-ichi Tadaki, Tadayuki Kodama, Kazuaki Ota +6
We present a panoramic narrow-band imaging survey of [OII] emitters in and around the ClG J0218.3-0510 cluster at z=1.62 with Suprime-Cam on Subaru telescope. 352 [OII] emitters we…