53 citations · 254 across the 10 of their papers we have counts for
12 papers
The Variability of the Broad Line Profiles of SDSS J1430+2303
Atsushi Hoshi, Toru Yamada, Kouji Ohta
SDSS J1430+2303 has been argued to possess a supermassive black hole binary which is predicted to merge within a few months or three years from January 2022. We conducted follow-up…
"Dark" GRB 080325 in a Dusty Massive Galaxy at z ~ 2
T. Hashimoto, K. Ohta, K. Aoki +30
We present optical and near infrared observations of GRB 080325 classified as a "Dark GRB". Near-infrared observations with Subaru/MOIRCS provided a clear detection of afterglow in…
Lyman-alpha Blobs Like Company : The Discovery of A Candidate 100 kpc Lyman-alpha Blob Near to A Radio Galaxy with A Giant Lyman-alpha halo, B3 J2330+3927 at z=3.1
Y. Matsuda, Y. Nakamura, N. Morimoto +15
We present the discovery of a candidate of giant radio-quiet Lyman-alpha (Lya) blob (RQLAB) in a large-scale structure around a high-redshift radio galaxy (HzRG) lying in a giant L…
MITSuME--Multicolor Imaging Telescopes for Survey and Monstrous Explosions
T. Kotani, N. Kawai, K. Yanagisawa +25
Development of MITSuME is reported. Two 50-cm optical telescopes have been built at Akeno in Yamanashi prefecture and at Okayama Astrophysical Observatory (OAO) in Okayama prefectu…
Search for the host galaxy of GRB 050904 at z=6.3
K. Aoki, H. Furusawa, K. Ohta +2
We present the results of deep imaging of the field of GRB 050904 with Suprime-Cam on the Subaru 8.2m telescope. We have obtained a narrow-band (130 A) image centered at 9200 A (NB…
Panoramic Views of Cluster-Scale Assemblies Explored by Subaru Wide-Field Imaging
Tadayuki Kodama, the PISCES team
We have started PISCES project; a panoramic imaging and spectroscopic survey of distant clusters on Subaru. It exploits the unique wide-field imaging capability of Suprime-Cam, whi…
Nobeyama Millimeter Array Observations of GRB 030329: a Decay of Afterglow with Bumps and Molecular Gas in the Host Galaxy
K. Kohno, T. Tosaki, T. Okuda +12
Nobeyama Millimeter Array was used to observe millimeter-wave afterglow of GRB 030329 at 93 GHz and 141 GHz from 2003 April 6 to 2003 May 30. A sensitive search for CO(J=1-0) emiss…
Deep-Imaging Observations of a Candidate of an Absorbed QSO at z=0.653, AX J131831+3341
M. Akiyama, K. Ohta, N. Tamura +12
The results of deep-imaging observations of a candidate of an absorbed QSO at z=0.653, AX J131831+3341, are presented. AX J131831+3341 was found during the course of optical follow…
[OII]3727 Emission from the Companion to the Quasar BR 1202-0725 at z=4.7
K. Ohta, T. Matsumoto, T. Maihara +10
Results of a narrow-band imaging for the redshifted [OII]3727 emission around a quasar at z=4.7 obtained with the Subaru telescope and CISCO (a Cassegrain near infrared camera) are…
Sensitive Radio Observations of High Redshift Dusty QSOs
M. S. Yun, C. L. Carilli, R. Kawabe +3
We present sensitive radio continuum imaging at 1.4 GHz and 4.9 GHz of seven high redshift QSOs selected for having a 240 GHz continuum detection, which is thought to be thermal du…
Nature of Hard X-ray Source from Optical Identification of the ASCA Large Sky Survey
M. Akiyama, K. Ohta, T. Yamada +6
We present results of optical identification of the ASCA Large Sky Survey. X-ray sources which have hard X-ray spectra were identified with type-2 AGN at redshifts smaller than 0.5…
Distribution of Blue Galaxies in a Merging Cluster of Galaxies Abell 168
A. Tomita, F. E. Nakamura, T. Takata +4
The fraction of star-forming galaxies in rich clusters of galaxies increases rapidly with the redshift. This is interpreted as the result of a rapid evolution of cluster galaxies,…