==========================================================================
J/ApJS/171/29 UCSD/Keck Damped Lyalpha Abundance Database (Prochaska+, 2007)
The following files can be converted to FITS (extension .fit or fit.gz)
table13.dat refs.dat
==========================================================================
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/ApJS/171/29
==========================================================================
drwxr-xr-x 10 cats archive 182 Jan 29 2012 [Up]
drwxr-xr-x 2 cats archive 4096 Jan 13 2023 [TAR file]
-rw-r--r-- 1 cats archive 478 Dec 19 2022 .message
-r--r--r-- 1 cats archive 6164 Oct 26 2009 ReadMe
-rw-r--r-- 1 cats archive 540 Oct 26 2009 +footg5.gif
-rw-r--r-- 1 cats archive 3917 Oct 26 2009 +footg8.gif
-r--r--r-- 1 cats archive 1360 Apr 16 2009 refs.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 16682 Apr 16 2009 table13.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :J/ApJS/171/29 UCSD/Keck Damped Lyalpha Abundance Database (Prochaska+, 2007)
================================================================================
The UCSD/Keck damped Lyalpha abundance database: a decade of high-resolution
spectroscopy.
Prochaska J.X., Wolfe A.M., Howk J.C., Gawiser E., Burles S.M., Cooke J.
<Astrophys. J. Suppl. Ser., 171, 29-60 (2007)>
=2007ApJS..171...29P
================================================================================
ADC_Keywords: H I data ; QSOs ; Spectroscopy ; Abundances
Keywords: quasars: absorption lines
Abstract:
We publish the Keck/HIRES and Keck/ESI spectra that we have obtained
during the first 10 years of Keck observatory operations. Our full
sample includes 42 HIRES spectra and 39 ESI spectra along 65 unique
sight lines providing abundance measurements on about 85 DLA systems.
The normalized data can be downloaded from the journal or from our
supporting Web site. The database includes all of the sight lines
that have been included in our papers on the chemical abundances,
kinematics, and metallicities of the damped Lyalpha systems. This
data has also been used to argue for variations in the fine-structure
constant. We present new chemical abundance measurements for 10 damped
Lyalpha systems and a summary table of high-resolution metallicity
measurements (including values from the literature) for 153 damped
Lyalpha systems at z>1.6. We caution, however, that this metallicity
sample (and all previous ones) is biased to higher N_HI_ values than a
random sample.
Description:
For nearly all observations, the HIRES spectra were acquired using
either a 0.8" or 1.1" wide decker (FWHM about 6 and 8km/s,
respectively) and the ESI observations were carried out with the 0.5"
or 0.75" slit (FWHM about 33 and 44km/s, respectively). All of the
HIRES spectra were acquired with the original Tektronix 2048*2048CCD.
In general we strove to achieve a final signal-to-noise ratio (S/N)
of >15pixel^-1^ (2km/s/pix for HIRES, 11km/s/pix for ESI). ESI has a
fixed format that covers the spectral region lambda=4000 to 10000AA.