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Subaru Spectroscopy of the Giant Ly Nebula Associated with the High- Powerful Radio Galaxy 1243+036
Youichi Ohyama, Yoshiaki Taniguchi
We report results of our new spatially-resolved, optical spectroscopy of the giant Ly nebula around a powerful radio galaxy 1243+036 (4C+03.24) at . The nebula is extend…
Subaru Surveys for High-z Galaxies
Yoshiaki Taniguchi
We present a summary of optical/NIR deep surveys for very high- galaxies using the 8.2m Subaru Telescope operated by National Astronomical Observatory of Japan. The prime focus…
Faint 6.7um Galaxies and their Contributions to the Stellar Mass Density in the Universe
Yasunori Sato, Lennox L. Cowie, Kimiaki Kawara +6
We discuss the nature of faint 6.7um galaxies detected with the mid-infrared camera ISOCAM on board the Infrared Space Observatory (ISO). The 23 hour integration on the Hawaii Deep…
The Halpha Luminosity Function of the Galaxy Cluster Abell 521 at z = 0.25
Kazuyoshi Umeda, Masafumi Yagi, Sanae F. Yamada +9
We present an optical multicolor-imaging study of the galaxy cluster Abell 521 at , using Suprime-Cam on the Subaru Telescope, covering an area of arcmin$^…
A Subaru Search for Lyman Emitters at Redshift 5.7
Masaru Ajiki, Yoshiaki Taniguchi, Shinobu S. Fujita +6
We present the results of a survey for Ly emitters at based on optical narrow-band ( Å~ and Å), and broad-band (, , $I_{…
Are Two z~6 Quasars Gravitationally Lensed ?
Sanae F. Yamada, Yasuhiro Shioya, Yoshiaki Taniguchi +11
Several high-z (z > 5.7) quasars have been found in the course of Sloan Digital Sky Survey. The presence of such very high-z quasars is expected to give constraints on early struct…
A deep 6.7um survey in the SSA13 field with ISO
Y. Sato, K. Kawara, L. L. Cowie +8
We present results of a deep mid-infrared survey in the SSA13 field with the Infrared Space Observatory (ISO). In order to probe the near-infrared light at high redshifts, we surve…
Subaru High-Dispersion Spectroscopy of Narrow-Line Region in the Seyfert Galaxy NGC 4151
Tohru Nagao, Takashi Murayama, Yasuhiro Shioya +1
We report on a study of forbidden emission-line spectrum of nearby Seyfert 1.5 galaxy NGC 4151 based on the high-resolution (R ~ 45,000) optical spectrum obtained by using the High…
Orbital Motion in the Radio Galaxy 3C 66B: Evidence for a Supermassive Black Hole Binary
H. Sudou, S. Iguchi, Y. Murata +1
Supermassive black hole binaries may exist in the centers of active galactic nuclei like quasars and radio galaxies and mergers between galaxies may result in the formation of supe…
Lyman Emitters beyond Redshift 5:The Dawn of Galaxy Formation
Yoshiaki Taniguchi, Yasuhiro Shioya, Shinobu S. Fujita +3
The 8m class telescopes in the ground-based optical astronomy together with help from the ultra-sharp eye of the Hubble Space Telescope have enabled us to observe forming galaxies…
The Halpha Luminosity Function and Star Formation Rate at z~0.24 Based on Subaru Deep Imaging Data
S. S. Fujita, M. Ajiki, Y. Shioya +8
We have carried out a deep imaging survey for H emitting galaxies at 0.24 using a narrowband filter tuned with the redshifted line. The total sky area covered is 706 a…
The MAHOROBA Project -- Deep Survey with an Optical Intermediate-Band Filter System on the Subaru Telescope
Y. Taniguchi
We present a summary of the new optical intermediate-band filter system for the prime-focus camera, Suprime-Cam, on the Subaru telescope at Mauna Kea Observatories. We also discuss…