The Case for an Abundant Population of Feeble Lyman-alpha Emitting Galaxies at z>8

Details The Case for an Abundant Population of Feeble Lyman-alpha Emitting Galaxies at z>8 The Case for an Abundant Population of Feeble Lyman-alpha Emitting Galaxies at z>8

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21114302s&link_type=abstract

American Astronomical Society, AAS Meeting #211, #143.02; Bulletin of the American Astronomical Society, Vol. 39, p.995

Astronomy and Astrophysics

Astronomy

Scientific paper

I will present new observational constraints on the abundance of z>8; Lyman-alpha emitters secured from a deep Keck near-infrared spectroscopic survey utilizing the strong magnification provided by lensing galaxy clusters. The survey has yielded six promising candidate Lyman-alpha emitters which appear to lie between z=8.7 and z=10.2. I will describe detailed follow-up exposures made to secure the high-redshift interpretation, as well as further tests that may be practical with upcoming instrumentation. Based upon our current knowledge of these sources, I will discuss their possible contribution to the reionization of neutral hydrogen.

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