The [O II] λ3727 luminosity function and star formation rate at z ≈ 1.2 in the COSMOS 2 square degree field and the Subaru deep field

M. I. Takahashi, Y. Shioya, Y. Taniguchi, T. Murayama, M. Ajiki, S. S. Sasaki, O. Koizumi, T. Nagao, N. Z. Scoville, B. Mobasher, H. Aussel, P. Capak, C. Carilli, R. S. Ellis, B. Garilli, M. Giavalisco, L. Guzzo, G. Hasinger, C. Impey, M. G. KitzbichlerA. Koekemoer, O. Le Fèvre, S. J. Lilly, D. Maccagni, A. Renzini, M. Rich, D. B. Sanders, E. Schinnerer, M. Scodeggio, P. Shopbell, V. Smolčić, S. Tribiano, Y. Ideue, S. Mihara

研究成果: Article査読

44 被引用数 (Scopus)

抄録

We have carried out a wide-field imaging survey for [O II] λ3727 emitting galaxies at z ≈ 1.2 in the HST COSMOS 2 square degree field using the Suprime-Cam on the Subaru Telescope. The survey covers a sky area of 6700 arcmin 2 in the COSMOS field, and a redshift range between 1.17 and 1.20 (Δz = 0.03), corresponding to a survey volume of 5.56 × 10 5 Mpc 3. We obtain a sample of 3176 [O II] emitting galaxies with observed emission-line equivalent widths greater than 26 Å. Since our survey tends to sample brighter [O II] emitting galaxies, we also analyze a sample of fainter [O II] emitting galaxies found in the Subaru Deep Field (SDF). We find an extinction-corrected [O II] luminosity density of 10 40.35-0.06+0.08 ergs s -1 Mpc -3, corresponding to star formation rate density of 0.32 -0.04 +0.06 M yr -1 Mpc -3 in the COSMOS field at z ≈ 1.2. This is the largest survey for [O II] emitters beyond z = 1 currently available.

本文言語English
ページ(範囲)456-467
ページ数12
ジャーナルAstrophysical Journal, Supplement Series
172
1
DOI
出版ステータスPublished - 2007

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

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