A Faint Star-Forming System Viewed Through the Lensing Cluster Abell 2218: First Light at z~5.6?

R. Ellis, M. Santos, J. P. Kneib, K. Kuijken

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Abstract

Published in: Astrophys. J. 560 (2001) L119-L122 citations recorded in [Science Citation Index] Abstract: We discuss the physical nature of a remarkably faint pair of Lyman alpha-emitting images discovered close to the giant cD galaxy in the lensing cluster Abell 2218 (z=0.18) during a systematic survey for highly-magnified star-forming galaxies beyond z=5. A well-constrained mass model suggests the pair arises via a gravitationally-lensed source viewed at high magnification. Keck spectroscopy confirms the lensing hypothesis and implies the unlensed source is a very faint (I~30) compact (
Original languageEnglish
Pages (from-to)L119-L121
Number of pages0
JournalThe Astrophysical Journal
Volume560
Issue number2
DOIs
Publication statusPublished - 3-Oct-2001

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