A Serendipitous Search for Hy-Redshift Ly$Alpha$ Emission: A Case Study of Two Sources at $z\simeq 3$
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
In the course of our on-going search for serendipitous high-redshift LyA emission in deep archival Keck spectra, we discovered two LyA emission line candidates in a moderate dispersion ($λ/{Δλ} +~ 1200$) spectrogram. Both lines have high equivalent width (EW_{obs}>= 450A), low velocity dispersions ($σ_v ~ 60 km/s), and deconvolved effective radii $r_e ~ 1.0 h_{50}^{-1}$ kpc. Their sizes and luminosities are suggestive of the primeval galaxy model of Lin & Murray (1992), based on the self-similar collapse of an isothermal sphere. We argue that the line emission is LyA, and it is stellar in origin. The sources are consistent with being primeval.
Poster paper given at the conference "The Hy-Redshift Universe: Galaxy Formation and Evolution at High Redshift", held in Berkeley, June 21-24, 1999 Uses latex style file hyfestconf.sty 4 pages, 2 figures, one table
Poster paper given at the conference "The Hy-Redshift Universe: Galaxy Formation and Evolution at High Redshift", held in Berkeley, June 21-24, 1999 Uses latex style file hyfestconf.sty 4 pages, 2 figures, one table