Lyman Alpha Emitting Galaxies at High Redshift : Direct Detection of Young Galaxies in a Young Universe

Steven Arthur Dawson

ISBN 10: 1581122942 / ISBN 13: 9781581122947

Published by Dissertation.Com Nov 2005, 2005

About this Item

Neuware - 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 theirsignature 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.

Seller Inventory # 9781581122947

Bibliographic Details

• Title: Lyman Alpha Emitting Galaxies at High Redshift : Direct Detection of Young Galaxies in a Young Universe
• Publisher: Dissertation.Com Nov 2005
• Publication Date: 2005
• Language: English
• ISBN 10: 1581122942
• ISBN 13: 9781581122947
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 246W x 189H x 11D millimeters 246 millimeters width by 189 millimeters height by 11 millimeters depth
• Weight: 406 grams

About this title

Synopsis

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.

About the Author

Steve Dawson received his B.S. in physics and his B.A. in philosophy from the University of California, Irvine, and his M.A. and Ph.D. in astrophysics from the University of California, Berkeley. He currently resides in Oakland, California, where he enjoys scuba diving, rock and roll, and the pursuit of various adventures.