SEARCH FOR z {approx} 7 Ly{alpha} EMITTERS WITH THE SUPRIME-CAM AT THE SUBARU TELESCOPE

Journal Article · Tue Jan 10 04:00:00 EST 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/744/2/89· OSTI ID:22004280

Hibon, P ^[1]; Kashikawa, N; Iye, M; Shibuya, T ^[2]; Willott, C ^[3]

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1. Gemini Observatory, La Serena (Chile)
2. Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588 (Japan)
3. Herzberg Institute of Astrophysics, National Research Council, Victoria, BC V9E 2E7 (Canada)

We report a search for z = 7 Ly{alpha} emitters (LAEs) using a custom-made narrowband filter centered at 9755 A with the Suprime-Cam instrument installed at the Subaru telescope. We observed two different fields and obtained two samples of seven LAEs, of which four are robust in each field. We cover the luminosity range of 9.10{sup 42}-2.10{sup 43} erg s{sup -1} in comoving volumes of {approx}4 Multiplication-Sign 10{sup 5} and 4.3 Multiplication-Sign 10{sup 5} Mpc{sup 3}. From this result, we derived possible z {approx} 7 Ly{alpha} luminosity functions for the full samples and for a subsample of four objects in each field. We do not observe, in each case, any strong evolution between the z = 6.5 and z {approx} 7 Ly{alpha} luminosity functions. Spectroscopic confirmation for these candidate samples is required to establish a definitive measure of the luminosity function at z {approx} 7.

• OSTI ID: 22004280
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 744; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
GALACTIC EVOLUTION
GALAXIES
LUMINOSITY
RED SHIFT
TELESCOPES
UNIVERSE