273 citations · 1.1k across the 12 of their papers we have counts for
13 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…
AEGIS-X: Deep Chandra imaging of the Central Groth Strip
K. Nandra, E. S. Laird, J. A. Aird +22
We present the results of deep \chandra\ imaging of the central region of the Extended Groth Strip, the AEGIS-X Deep (AEGIS-XD) survey. When combined with previous \chandra\ observ…
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…
Direct Imaging Detection of Methane in the Atmosphere of GJ 504 b
M. Janson, T. Brandt, M. Kuzuhara +54
Most exoplanets detected by direct imaging so far have been characterized by relatively hot (> ~1000 K) and cloudy atmospheres. A surprising feature in some of their atmospheres ha…
Direct Imaging of a Cold Jovian Exoplanet in Orbit around the Sun-like Star GJ 504
M. Kuzuhara, M. Tamura, T. Kudo +54
Several exoplanets have recently been imaged at wide separations of >10 AU from their parent stars. These span a limited range of ages (<50 Myr) and atmospheric properties, with te…
Mapping H-band Scattered Light Emission in the Mysterious SR21 Transitional Disk
Katherine B. Follette, Motohide Tamura, Jun Hashimoto +50
We present the first near infrared (NIR) spatially resolved images of the circumstellar transitional disk around SR21. These images were obtained with the Subaru HiCIAO camera, ada…
Black hole mass and Eddington ratio distribution functions of X-ray selected broad-line AGNs at z~1.4 in the Subaru XMM-Newton Deep Field
K. Nobuta, M. Akiyama, Y. Ueda +24
In order to investigate the growth of super-massive black holes (SMBHs), we construct the black hole mass function (BHMF) and Eddington ratio distribution function (ERDF) of X-ray-…
"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…
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…
Down-Sizing in Galaxy Formation at z~1 in the Subaru/XMM-Newton Deep Survey (SXDS)
Tadayuki Kodama
We use the deep wide-field optical imaging data of the Subaru/XMM-Newton Deep Survey (SXDS) to discuss the luminosity (mass) dependent galaxy colours down to z'=25.0 (5 x 10^9 h_{7…
Subaru Deep Survey. IV. Discovery of a Large-Scale Structure at Redshift \simeq 5
K. Shimasaku, M. Ouchi, S. Okamura +22
We report the discovery of a large-scale structure of Lyman alpha emitters (LAEs) at z=4.86 based on wide-field imaging with the prime-focus camera (Suprime-Cam) on the Subaru tele…
Chandra Observations and Optical Identification of Hard X-ray Sources Discovered with ASCA
Shin Watanabe, Masayuki Akiyama, Yoshihiro Ueda +4
We present the first results of the Chandra and optical follow-up observations of hard X-ray sources detected in the ASCA Medium Sensitivity Survey (AMSS). Optical identifications…
Expected Sub-mm Emission and Dust Properties of Lyman Break Galaxies at High Redshift
Masami Ouchi, Toru Yamada, Hideaki Kawai +1
We investigate expected sub-mm emission and dust properties of the Lyman Break Galaxies (LBGs) in the Hubble Deep Field (HDF). The SCUBA Deep Survey (Hughes et al., 1998) provides…