Quasar winds and narrow absorption lines Virtual Observatory Resource

Authors
  1. Culliton C.
  2. Charlton J.
  3. Eracleous M.
  4. Ganguly R.
  5. Misawa T.
  6. Published by
    CDS
Abstract

We use the spectra of 73 quasars (1.5=<z=<5) from the VLT UVES archive to catalogue and study narrow absorption lines (NALs) that are physically associated with (intrinsic to) the quasars. We identify 410 NAL systems containing CIV, NV, and/or SiIV doublets. Based on the assumption that only systems intrinsic to the quasar can exhibit partial coverage of the background source(s), we identify 34 reliably intrinsic NAL systems and 11 systems that are potentially intrinsic, as well as 4 mini-broad absorption lines (BALs) and 1 BAL. The minimum fraction of quasars with at least one intrinsic system is shown to be 38 per cent. We identify intrinsic NALs with a wide range of properties, including apparent ejection velocity, coverage fraction, and ionization level. There is a continuous distribution of properties, rather than discrete families, ranging from partially covered CIV systems with black Ly{alpha} and with a separate low-ionization gas phase to partially covered NV systems with partially covered Ly{alpha} and without detected low-ionization gas. Even more highly ionized associated and intrinsic absorption systems (OVI, NeVIII, and MgX doublets) have been presented in separate studies; these may represent an extension of the above sequence. We also use the properties of the NALs in conjunction with recent models of accretion disc winds that predict the origins of the absorbing gas in order to determine the model that best characterizes our sample. Additionally, we construct a model describing the spatial distributions, geometries, and varied ionization structures of intrinsic NALs.

Keywords
  1. Accretion
  2. Active galactic nuclei
  3. Spectroscopy
  4. Quasars
  5. Redshifted
  6. Optical astronomy
Bibliographic source Bibcode
2019MNRAS.488.4690C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/488/4690
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/488/4690
Document Object Identifer DOI

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/488/4690
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/488/4690
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/488/4690
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/488/4690/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/488/4690/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/488/4690/table1?

History

2023-02-09T12:48:39Z
Resource record created
2023-02-09T12:48:39Z
Created
2023-03-20T14:03:28Z
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