New corroborative evidence for the overdensity of galaxies around the radio-loud quasar SDSS J0836 + 0054 at z = 5.8

Masaru Ajiki, Yoshiaki Taniguchi, Takashi Murayama, Yasuhiro Shioya, Tohru Nagao, Shunji S. Sasaki, Yuichiro Hatakeyama, Taichi Morioka, Asuka Yokouchi, Mari I. Takahashi, Osamu Koizumi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Recently, Zheng et al. (2006) found evidence for an overdensity of galaxies around a radio-loud quasar, SDSS J0836 + 0054, at z = 5.8 (a 5 arcmin 2 field). We examined our deep optical imaging data (B, V, r′, i′, z′, and NB816) taken with the Suprime-Cam on the Subaru Telescope. The NB816 narrow-band filter (λc = 815 nm and Δλ. = 12nm) is suitable to search for Lyα emitters at z ≈ 5.7. We found a new strong Lyα emitter at z ≈ 5.7 close to object B, identified by Zheng et al. (2006). Further, the non-detection of nine objects selected by Zheng et al. (2006) in our B, V, and r′ images provides corroborative evidence to indicate that they are high-z objects.

Original languageEnglish
Pages (from-to)499-502
Number of pages4
JournalPublications of the Astronomical Society of Japan
Volume58
Issue number3
DOIs
Publication statusPublished - 2006

Keywords

  • Cosmology: early universe
  • Cosmology: observations
  • Galaxies: evolution
  • Galaxies: formation

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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