Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-11-23
Astronomical Society of the Pacific Conference Series Volume 193, eds. A. J. Bunker & W. J. M. van Breugel
Astronomy and Astrophysics
Astrophysics
Poster paper given at the conference "The Hy-Redshift Universe: Galaxy Formation and Evolution at High Redshift", held in Berk
Scientific paper
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 ($\lambda/{\Delta \lambda} +~ 1200$) spectrogram. Both lines have high equivalent width (EW_{obs}>= 450A), low velocity dispersions ($\sigma_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.
Bunker Andrew J.
Manning Curtis
Spinrad Hyron
Stern Daniel
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