QSOs CaII absorbers Virtual Observatory Resource

Authors

1. Richter P.
2. Krause F.
3. Fechner C.
4. Charlton J.C.
5. Murphy M.T.

Published by

CDS

Abstract

We present a systematic study of weak intervening CaII absorbers at low redshift (z<0.5), based on the analysis of archival high-resolution (R>=45000) optical spectra of 304 quasars and active galactic nuclei observed with VLT/UVES. Along a total redshift path of {DELTA}z~~100 we detected 23 intervening CaII absorbers in both the CaII H & K lines, with rest frame equivalent widths W_r,3934_=15-799m{AA} and column densities logN(CaII)=11.25-13.04 (obtained by fitting Voigt-profile components).

Keywords

1. quasars
2. redshifted
3. line-intensities

Bibliographic source Bibcode

2011A&A...528A..12R

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https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/528/A12

IVOA Identifier IVOID

ivo://CDS.VizieR/J/A+A/528/A12

Document Object Identifer DOI

doi:10.26093/cds/vizier.35280012

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