| Issue |
A&A
Volume 422, Number 1, July IV 2004
|
|
|---|---|---|
| Page(s) | L13 - L17 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:20040189 | |
| Published online | 06 July 2004 | |
Letter to the Editor
A Lyman α emitter at z = 6.5 found with slitless spectroscopy*
1
INAF, Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy
2
European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748, Garching bei München, Germany
3
Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Strasse 1, 85748, Garching bei München, Germany
Corresponding author: J. D. Kurk, kurk@arcetri.astro.it
Received:
17
May
2004
Accepted:
2
June
2004
We report the discovery of a Lyman α emitting
galaxy at 
. The single line was found in the 43 arcmin2 VLT/FORS field by slitless spectroscopy limited to the
atmospheric window at 
Å (sampling Lyα at
). Its counterpart is undetected in a deep I band
image and the line has an asymmetric appearance in a deeper
follow-up spectrum. There are no plausible line identifications
except for Lyα with a flux of 
and rest frame equivalent width >80 Å. The lower limit to
the star formation rate density at 
derived from our
complete sample is 
yr-1 Mpc-3, consistent with measurements in the Subaru Deep Field
and Hubble Ultra Deep Field but approximately ten times higher than
in the Large Area Lyman Alpha survey. This Lyα emitter is among
the very small sample of highest redshift galaxies known.
Key words: galaxies: high-redshift / galaxies: formation / galaxies: starburst
© ESO, 2004
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