A New High-Redshift Lyman alpha Emitter: Possible Superwind Galaxy at z = 5.69

Details A New High-Redshift Lyman alpha Emitter: Possible Superwind Galaxy at z = 5.69 A New High-Redshift Lyman alpha Emitter: Possible Superwind Galaxy at z = 5.69

2002-07-15

arxiv.org/abs/astro-ph/0207303v2

Astrophys.J. 576 (2002) L25-L28

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures (Figure 2 and Figure 4 are JPEG files). ApJ (Letters), in press

Scientific paper

10.1086/343026

During the course of our deep optical imaging survey for Ly alpha emitters at z approximately 5.7 in the field around the z=5.74 quasar SDSSp J104433.04-012502.2, we have found a candidate strong emission-line source. Follow-up optical spectroscopy shows that the emission line profile of this object is asymmetric, showing excess red-wing emission. These properties are consistent with an identification of Ly alpha emission at a redshift of z=5.687 +/- 0.002. The observed broad line width, Delta V_{FWHM} ~= 340 km s^{-1} and excess red-wing emission also suggest that this object hosts a galactic superwind.

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