CaII absorbers in SDSS QSOs Virtual Observatory Resource

Authors
  1. Sardane G.M.
  2. Turnshek D.A.
  3. Rao S.M.
  4. Published by
    CDS
Abstract

We present the results of a survey for CaII {lambda}{lambda}3934,3969 absorption-line systems culled from ~95000 Sloan Digital Sky Survey (SDSS) Data Release 7 and Data Release 9 quasar spectra. With 435 doublets identified in the catalogue, this list is the largest CaII catalogue compiled to date, spanning redshifts z<1.34, which corresponds to the most recent ~8.9Gyr of the history of the Universe. We derive statistics on the Caii rest equivalent width distribution and incidence. We find that the {lambda}3934 rest equivalent width (W_0_^{lambda}3934^) distribution cannot be described by a single exponential function. A double exponential function is required to produce a satisfactory description.

Keywords
  1. quasars
  2. redshifted
  3. line-intensities
Bibliographic source Bibcode
2014MNRAS.444.1747S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/444/1747
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/444/1747
Document Object Identifer DOI
doi:10.26093/cds/vizier.74441747

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/444/1747
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/444/1747
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/444/1747
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/444/1747/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/444/1747/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/444/1747/table1?

History

2015-09-09T09:12:11Z
Resource record created
2015-09-09T09:12:11Z
Created
2024-08-10T20:18:37Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr