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GREX-PLUS Science Book
PLUS Science Team, Akio K. Inoue, Yuichi Harikane +28
GREX-PLUS (Galaxy Reionization EXplorer and PLanetary Universe Spectrometer) is a mission candidate for a JAXA's strategic L-class mission to be launched in the 2030s. Its primary…
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…
Mapping the large scale structure around a z=1.46 galaxy cluster in 3-D using two adjacent narrow-band filters
Masao Hayashi, Tadayuki Kodama, Yusei Koyama +7
We present a novel method to estimate accurate redshifts of star-forming galaxies by measuring the flux ratio of the same emission line observed through two adjacent narrow-band fi…
Nature of H-alpha selected galaxies at z>2. II. Clumpy galaxies and compact star-forming galaxies
Ken-ichi Tadaki, Tadayuki Kodama, Ichi Tanaka +3
We present the morphological properties of 109 Hα-selected galaxies at z>2 in SXDF-UDS-CANDELS field. With high-resolution optical/near-infrared images obtained by Hubble Space Tel…
On the evolution and environmental dependence of the star formation rate versus stellar mass relation since z~2
Yusei Koyama, Ian Smail, Jaron Kurk +8
This paper discusses the evolution of the correlation between galaxy star formation rates (SFRs) and stellar mass (M*) over the last ~10 Gyrs, particularly focusing on its environm…
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…
A star-bursting proto-cluster in making associated to a radio galaxy at z=2.53 discovered by H_alpha imaging
Masao Hayashi, Tadayuki Kodama, Ken-ichi Tadaki +2
We report a discovery of a proto-cluster in vigorous assembly and hosting strong star forming activities, associated to a radio galaxy USS 1558-003 at z=2.53, as traced by a wide-f…
Initial Results from the Nobeyama Molecular Gas Observations of Distant Bright Galaxies
D. Iono, B. Hatsukade, K. Kohno +37
We present initial results from the CO survey toward high redshift galaxies using the Nobeyama 45m telescope. Using the new wide bandwidth spectrometer equipped with a two-beam SIS…
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…
Properties of star-forming galaxies in a cluster and its surrounding structure at z=1.46
Masao Hayashi, Tadayuki Kodama, Yusei Koyama +2
We conduct a narrow-band imaging survey of [OII] emitters over a 32'x23' area in and around the XMMXCS J2215.9-1738 cluster at z=1.46 with Subaru/Suprime-Cam, and select 380 [OII]…
Cosmic Star Formation Activity at z=2.2 Probed by H-alpha Emission Line Galaxies
Ken-ichi Tadaki, Tadayuki Kodama, Yusei Koyama +3
We present a pilot narrow-band survey of H-alpha emitters at z=2.2 in the Great Observatories Origins Deep Survey North (GOODS-N) field with MOIRCS instrument on the Subaru telesco…