Lyman Alpha Emitting Galaxies at High Redshift: Direct Detection of Young Galaxies in a Young Universe-Steven Arthur Dawson PDF Download

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As late as 1995, the anticipated widespread population of primeval galaxies remained at large, lurking undetected at unknown redshifts, with undiscovered properties. We present results from our efforts to detect and characterize primeval galaxies by their signature high-redshift Lyman-alpha emission lines utilizing two observational techniques: serendipitous slit spectroscopy and narrowband imaging. By pushing these techniques to their utmost limits, we probe the Lyman-alpha-emitting galaxy population out to redshifts as high as z = 6.5. Galaxies at this epoch reside in a universe which is just 800 million years old, a mere 6% of its current age. As such, this work provides one account of the manner by which observational cosmology has recently shifted from merely marveling at the incredible lookback times implied by the first few high-redshift detections, to the routine assembly of high-redshift datasets designed to address specific astrophysical issues.

Author: Dawson, Steven Arthur
Publisher: Dissertation.Com
Illustration: N
Language: ENG
Title: Lyman Alpha Emitting Galaxies at High Redshift: Direct Detection of Young Galaxies in a Young Universe
Pages: 00000 (Encrypted PDF)
On Sale: 2012-09-06
SKU-13/ISBN: 9781581122947
Category: Science : Astronomy - General
Category: Science : Physics - Astrophysics