108 citations · 639 across the 17 of their papers we have counts for
8 papers · 1 filter
Profiles of Lymanα Emission Lines
T. Yamada, Y. Matsuda, K. Kousai +3
We present the results of the observations of the Lyα line profiles of 91 emission-line galaxies at z=3.1 with the spectral resolution of λ/δλ(FWHM) = 1700, or 180 km/s. A signific…
An H-alpha search for over-dense regions at z=2.23
Y. Matsuda, Ian Smail, J. E. Geach +16
We present the results of a narrow-band (H2S1, 2.121/0.021um) imaging search with WFCAM/UKIRT for H-alpha emitters around several potential signposts of rare (10^-7-10^-8 Mpc^-3) o…
Ly alpha emissters at z=6.5 in the SSA22 field: An area more neutral or void at the end of the reionization epoch
E. Nakamura, A. K. Inoue, T. Hayashino +4
We present results of a survey of Lyman emitters (LAEs) at which is thought to be the final epoch of the cosmic reionization. In a arcmin deep image of…
The Subaru Ly-alpha blob survey: A sample of 100 kpc Ly-alpha blobs at z=3
Y. Matsuda, T. Yamada, T. Hayashino +11
We present results of a survey for giant Ly-alpha nebulae (LABs) at z=3 with Subaru/Suprime-Cam. We obtained Ly-alpha imaging at z=3.09+-0.03 around the SSA22 protocluster and in s…
Lyman `bump' galaxies - II. A possible signature of massive extremely metal-poor or metal-free stars in z=3.1 Ly-alpha emitters
Akio K. Inoue, K. Kousai, I. Iwata +9
(Abridged) Deep NB359 imaging with Subaru by Iwata et al. have detected surprisingly strong Lyman continuum (LyC; ~900A in the rest-frame) from some LAEs at z=3.1. However, the red…
A search for galaxies in and around an HI overdense region at z=5
Y. Matsuda, J. Richard, Ian Smail +7
We present the discovery of a large-scale structure of emission-line galaxies at redshift z=4.86 behind a massive cluster of galaxies, A1689. Previous spectroscopic observations of…
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…
The Chandra Deep Protocluster Survey: Point-Source Catalogs for a 400 ks Observation of the z = 3.09 Protocluster in SSA22
B. D. Lehmer, D. M. Alexander, S. C. Chapman +7
We present X-ray point-source catalogs for a deep 400 ks Chandra ACIS-I exposure of the SSA22 field. The observations are centred on a z = 3.09 protocluster, which is populated by…