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The Structure of Pre-transitional Protoplanetary Disks. II. Azimuthal Asymmetries, Different Radial Distributions of Large and Small Dust Grains in PDS~70
J. Hashimoto, T. Tsukagoshi, J. M. Brown +54
The formation scenario of a gapped disk, i.e., transitional disk, and its asymmetry is still under debate. Proposed scenarios such as disk-planet interaction, photoevaporation, gra…
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…
A First Site of Galaxy Cluster Formation: Complete Spectroscopy of a Protocluster at
Jun Toshikawa, Nobunari Kashikawa, Roderik Overzier +8
We performed a systematic spectroscopic observation of a protocluster at in the Subaru Deep Field. We took spectroscopy for all 53 -dropout galaxies down to $z'=27.09\…
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 =…