Issue |
A&A
Volume 407, Number 3, September I 2003
|
|
---|---|---|
Page(s) | 1157 - 1164 | |
Section | Astronomical instrumentation | |
DOI | https://doi.org/10.1051/0004-6361:20030885 | |
Published online | 17 November 2003 |
A flux-calibrated, high-resolution atlas of optical sky emission from UVES *,**
European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching, Germany
Corresponding author: rhanusch@eso.org
Received:
18
April
2003
Accepted:
19
May
2003
This paper presents a flux-calibrated, high-resolution, high-SNR atlas of optical and near-IR sky emission. It provides a complete template of the high-resolution night-sky emission spectrum with the deepest exposures ever obtained from the ground. The data have been acquired by UVES, ESO's echelle spectrograph at the 8.2-m UT2 telescope of the Very Large Telescope (VLT). Raw data stacks with up to 16 hours of integration time have been combined. The spectrum covers the range 3140–10 430 Å at a resolving power of about 45 000. A total of 2810 sky emission lines have been measured. This high-resolution spectrum is intended to be used for the identification of previously unknown faint sky lines, for simulations of ground based observations where the sky background is important, as a template for checks on the accuracy and stability of the wavelength scale, and as a reference for the reduction of spectra of faint objects.
Key words: line: identification / atomic data / atmospheric effects / atlases / techniques: spectroscopic
© ESO, 2003
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