Spectra of 28 intermediate redshift quasars Virtual Observatory Resource

Authors
  1. Sulentic J.W.
  2. Del Olmo A.
  3. Marziani P.
  4. Martinez-Carballo M.A.,D'Onofrio M.
  5. Dultzin D.
  6. Perea J.
  7. Martinez-Aldama M.L.
  8. Negrete C.A.,Stirpe G.M.
  9. Zamfir S.
  10. Published by
    CDS
Abstract

Broad emission lines in quasars enable us to "resolve" structure and kinematics of the broad-line emitting region (BLR) thought to involve an accretion disk feeding a supermassive black hole. Interpretation of broad line measures within the 4DE1 formalism simplifies the apparent confusion among such data by contrasting and unifying properties of so-called high and low accreting Population A and B sources. H-beta serves as an estimator of black hole mass, Eddington ratio and source rest frame; the latter being a valuable input for CIV 1549 studies which allow us to isolate the blueshifted wind component. Optical and HST-UV spectra yield H-beta and CIV 1549 spectra for low-luminosity sources while VLT-ISAAC and FORS and TNG-LRS provide spectra for high-luminosity sources. New high-S/N data for CIV in high-luminosity quasars are presented here for comparison with the other previously published data. Comparison of H-beta and CIV 1549 profile widths/shifts indicates that much of the emission from the two lines arise in regions with different structure and kinematics. Covering a wide range of luminosity and redshift shows evidence for a correlation between CIV 1549 blueshift and source Eddington ratio, with a weaker trend with source luminosity (similar amplitude outflows are seen over four of the five dex luminosity ranges in our combined samples). At low luminosity (z<0.7) only Population A sources show evidence for a significant outflow while at high luminosity the outflow signature begins to appear in Population B quasars as well.

Keywords
  1. Quasars
  2. Star atlases
  3. Spectrophotometry
Bibliographic source Bibcode
2017A&A...608A.122S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/608/A122
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/608/A122
Document Object Identifer DOI
doi:10.26093/cds/vizier.36080122

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/608/A122
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/608/A122
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/608/A122
IVOA Table Access TAP
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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/A+A/608/A122/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/608/A122/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/608/A122/table1?

History

2017-12-14T08:13:50Z
Resource record created
2017-12-14T08:13:50Z
Created
2017-12-15T18:16:44Z
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