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8 papers · 2 filters
Chemical enrichment and accretion of nitrogen-loud quasars
Kenta Matsuoka, Tohru Nagao, Roberto Maiolino +3
We present rest-frame optical spectra of 12 nitrogen-loud quasars at z ~ 2.2, whose rest-frame ultraviolet (UV) spectra show strong nitrogen broad emission lines. To investigate th…
Morphological evidence for a past minor merger in the Seyfert galaxy NGC 1068
Ichi Tanaka, Masafumi Yagi, Yoshiaki Taniguchi
Deep optical imaging with both Hyper Suprime-Cam and Suprime-Cam on the 8.2 m Subaru Telescope reveals a number of outer faint structures around the archetypical Seyfert galaxy NGC…
SILVERRUSH. IV. Ly Luminosity Functions at and Studied with 1,300 LAEs on the deg Sky
Akira Konno, Masami Ouchi, Takatoshi Shibuya +18
We present the Ly luminosity functions (LFs) at 5.7 and 6.6 derived from a new large sample of 1,266 Ly emitters (LAEs) identified in total areas of 14 and 21 deg, re…
SILVERRUSH. III. Deep Optical and Near-Infrared Spectroscopy for Lya and UV-Nebular Lines of Bright Lya Emitters at z=6-7
Takatoshi Shibuya, Masami Ouchi, Yuichi Harikane +23
We present Lya and UV-nebular emission line properties of bright Lya emitters (LAEs) at z=6-7 with a luminosity of log L_Lya/[erg s-1] = 43-44 identified in the 21-deg2 area of the…
SILVERRUSH. II. First Catalogs and Properties of ~2,000 Lya Emitters and Blobs at z~6-7 Identified over the 14-21 deg2 Sky
Takatoshi Shibuya, Masami Ouchi, Akira Konno +19
We present an unprecedentedly large catalog consisting of 2,230 > L* Lya emitters (LAEs) at z=5.7 and 6.6 on the 13.8 and 21.2 deg2 sky, respectively, that are identified by the SI…
Systematic Identification of LAEs for Visible Exploration and Reionization Research Using Subaru HSC (SILVERRUSH). I. Program Strategy and Clustering Properties of ~2,000 Lya Emitters at z=6-7 over the 0.3-0.5 Gpc Survey Area
Masami Ouchi, Yuichi Harikane, Takatoshi Shibuya +17
We present the SILVERRUSH program strategy and clustering properties investigated with Ly emitters at and found in the early data of the Hyper Suprime…
Great Optically Luminous Dropout Research Using Subaru HSC (GOLDRUSH). I. UV Luminosity Functions at Derived with the Half-Million Dropouts on the 100 deg Sky
Yoshiaki Ono, Masami Ouchi, Yuichi Harikane +23
We study the UV luminosity functions (LFs) at , , and based on the deep large-area optical images taken by the Hyper Suprime-Cam (HSC) Subaru strategic program…
A search for Ly-alpha emitters around a concentrated-region of strong Ly-alpha absorbers at z=2.3
Kazuyuki Ogura, Tohru Nagao, Masatoshi Imanishi +6
In order to investigate the physical relationship between strong Ly-alpha absorbers (logN_HI>20.0 cm^-2) such as damped Ly-alpha absorption systems (DLAs) and young star-forming ga…