A New High-Redshift Lyα Emitter: Possible Superwind Galaxy at z=5.69
Abstract
During the course of our deep optical imaging survey for Lyα emitters at z~5.7 in the field around the z=5.74 quasar SDSSp J104433.04-012502.2, we 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 Lyα emission at a redshift of z=5.687+/-0.002. The observed broad line width (ΔvFWHM~=340 km s-1) and excess red wing emission also suggest that this object hosts a galactic superwind. Based on data collected at the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan, and at the W. M. Keck Observatory.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 2002
- DOI:
- 10.1086/343026
- arXiv:
- arXiv:astro-ph/0207303
- Bibcode:
- 2002ApJ...576L..25A
- Keywords:
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- Galaxies: Formation;
- galaxies: individual (LAE J1044-0130);
- Galaxies: Starburst;
- Astrophysics
- E-Print:
- 5 pages, 4 figures (Figure 2 and Figure 4 are JPEG files). ApJ (Letters), in press