Lyα Emitters at Redshift 5.7 in the COSMOS Field
- Murayama, T.
- Taniguchi, Y.
- Scoville, N. Z.
- Ajiki, M.
- Sanders, D. B.
- Mobasher, B.
- Aussel, H.
- Capak, P.
- Koekemoer, A.
- Shioya, Y.
- Nagao, T.
- Carilli, C.
- Ellis, R. S.
- Garilli, B.
- Giavalisco, M.
- Kitzbichler, M. G.
- Le Fèvre, O.
- Maccagni, D.
- Schinnerer, E.
- Smolčić, Vernesa
- Tribiano, S.
- Cimatti, A.
- Komiyama, Y.
- Miyazaki, S.
- Sasaki, S. S.
- Koda, J.
- Karoji, H.
DOIAbstract
We present results from a narrowband optical survey of a contiguous area of 1.95 deg2, covered by the Cosmic Evolution Survey (COSMOS). Both optical narrowband (λc = 8150 Å and Δλ = 120 Å) and broadband (B , V, g', r', i', and z') imaging observations were performed with the Subaru prime-focus camera, Suprime-Cam on the Subaru Telescope. We provide the largest contiguous narrowband survey, targeting Lyα emitters (LAEs) at z ≈ 5.7. We find a total of 119 LAE candidates at z ~ 5.7. Over the wide-area covered by this survey, we find no strong evidence for large-scale clustering of LAEs. We estimate a star formation rate (SFR) density of ~7 × 10-4 M☉ yr-1 Mpc-3 for LAEs at z ≈ 5.7 and compare it with previous measurements
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