HI and OVI absorbers in nearby Universe Virtual Observatory Resource

Authors
  1. Wakker B.P.
  2. Savage B.D.
  3. Published by
    CDS
Abstract

We analyze intergalactic HI and OVI absorbers with {nu}<5000km/s in Hubble Space Telescope and Far Ultraviolet Spectroscopic Explorer spectra of 76 active galactic nuclei. The baryons traced by HI/OVI absorption are clearly associated with the extended surroundings of galaxies; for impact parameters <400kpc they are 2-4 times more numerous as those inside the galaxies. This large reservoir of matter likely plays a major role in galaxy evolution. We tabulate the fraction of absorbers having a galaxy of a given luminosity within a given impact parameter ({rho}) and velocity difference ({Delta}v), as well as the fraction of galaxies with an absorber closer than a given {rho} and {Delta}v. We identify possible "void absorbers" ({rho}>3Mpc to the nearest L_*_ galaxy), although at v<2500km/s all absorbers are within 1.5Mpc of an L>0.1L_*_ galaxy. The absorber properties depend on {rho}, but the relations are not simple correlations.

Keywords
  1. active-galactic-nuclei
  2. galaxies
  3. spectroscopy
  4. ultraviolet-astronomy
  5. line-intensities
Bibliographic source Bibcode
2009ApJS..182..378W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/182/378
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/182/378
Document Object Identifer DOI
doi:10.26093/cds/vizier.21820378

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/182/378
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/182/378
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/182/378
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/ApJS/182/378/table13?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/182/378/table13?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/182/378/table13?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/182/378/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/182/378/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/182/378/table1?

History

2010-03-12T13:07:20Z
Resource record created
2010-03-12T13:07:20Z
Created
2017-11-28T13:21:22Z
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