105 citations · 495 across the 18 of their papers we have counts for
6 papers · 1 filter
Balmer Absorption Lines in FeLoBALs
K. Aoki, I. Iwata, K. Ohta +5
We discovered non-stellar Balmer absorption lines in two many-narrow-trough FeLoBALs (mntBALs) by the near-infrared spectroscopy with Subaru/CISCO. Presence of the non-stellar Balm…
The Long Faint Tail of the High-Redshift Galaxy Population
Marcin Sawicki, Ikuru Iwata, Kouji Ohta +6
We study the properties of very faint, sub-L* Lyman break galaxies at z~2-5 - thus far a largely neglected but numerically and energetically very important population. We find that…
A Subaru/Suprime-Cam wide-field survey of globular cluster populations around M87 - II: Colour and spatial distribution
Naoyuki Tamura, Ray M. Sharples, Nobuo Arimoto +3
We have performed a wide-field imaging survey of the globular cluster (GC) populations around M87 out to a radius of ~ 0.5 Mpc with Suprime-Cam on the 8.2m Subaru Telescope. By inv…
A Subaru/Suprime-Cam wide-field survey of globular cluster populations around M87 - I: Observation, data analysis, and luminosity function
Naoyuki Tamura, Ray M. Sharples, Nobuo Arimoto +3
In this paper and a companion paper, we report on a wide-field imaging survey of the globular cluster (GC) populations around M87 carried out with Suprime-Cam on the 8.2m Subaru te…
Discovery of H alpha absorption in the unusual broad absorption line quasar SDSS J083942.11+380526.3
Kentaro Aoki, Ikuru Iwata, Kouji Ohta +3
We discovered an H alpha absorption in a broad H alpha emission line of an unusual broad absorption line quasar, SDSS J083942.11+380526.3 at z=2.318, by near-infrared spectroscopy…
Deficiency of large equivalent width Lyman-alpha emission in luminous Lyman break galaxies at z~5-6?
Masataka Ando, Kouji Ohta, Ikuru Iwata +3
We report a deficiency of luminous Lyman break galaxies (LBGs) with a large rest-frame equivalent width (EW_rest) of Lyman-alpha emission at z~5-6. Combining our spectroscopic samp…