QSOs CaII absorbers (Richter+, 2011)

Details QSOs CaII absorbers (Richter+, 2011) QSOs CaII absorbers (Richter+, 2011)

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ycat..35289012r&link_type=abstract

VizieR On-line Data Catalog: J/A+A/528/A12. Originally published in: 2011A&A...528A..12R

Physics

Qsos, Redshifts, Equivalent Widths

Scientific paper

For our CaII survey we made use of the ESO data archive and retrieved all publically available (as of Sep. 2008) absorption-line data for low- and high-redshift QSOs observed with the Ultraviolet and Visual Echelle Spectrograph (UVES) on the VLT. This enormous data archive (Spectral Quasar Absorption Database, SQUAD; PI: M.T. Murphy) provides high-quality spectral data for ~400 quasars and active galactic nuclei (AGN). Most of these spectra were taken in the UVES standard configuration using the 1" slit, providing a spectral resolution of R~45000 (corresponding to a velocity resolution of ~6.6km/sFWHM). Only a few spectra have been observed at slightly higher spectral resolution, up to R~60000. The spectral coverage as well as the signal-to-noise ratio (S/N) varies substantially among the spectra, reflecting the various scientific goals of the original proposals.
(5 data files).

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