Candidate X-ray emitting OB stars in Carina Virtual Observatory Resource

Authors
  1. Povich M.S.
  2. Townsley L.K.
  3. Broos P.S.
  4. Gagne M.
  5. Babler B.L.,Indebetouw R.
  6. Majewski S.R.
  7. Meade M.R.
  8. Getman K.V.
  9. Robitaille T.P.,Townsend R.H.D.
  10. Published by
    CDS
Abstract

We report the results of a new survey of massive, OB stars throughout the Carina Nebula using the X-ray point source catalog provided by the Chandra Carina Complex Project (CCCP) in conjunction with infrared (IR) photometry from the Two Micron All-Sky Survey and the Spitzer Space Telescope Vela-Carina survey. Mid-IR photometry is relatively unaffected by extinction, hence it provides strong constraints on the luminosities of OB stars, assuming that their association with the Carina Nebula, and hence their distance, is confirmed. We fit model stellar atmospheres to the optical (UBV) and IR spectral energy distributions (SEDs) of 182 OB stars with known spectral types and measure the bolometric luminosity and extinction for each star. Using X-ray emission as a strong indicator of association with Carina, we identify 94 candidate OB stars with L_bol_>~10^4^L_{sun}_ by fitting their IR SEDs. If the candidate OB stars are eventually confirmed by follow-up spectroscopic observations, the number of cataloged OB stars in the Carina Nebula will increase by ~50%.

Keywords
  1. ob-stars
  2. extinction
  3. infrared-photometry
Bibliographic source Bibcode
2011ApJS..194....6P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/194/6
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/194/6
Document Object Identifer DOI
doi:10.26093/cds/vizier.21940006

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/194/6
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/194/6
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/194/6
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/194/6/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/194/6/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/194/6/table1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/194/6/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/194/6/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/194/6/table3?

History

2011-06-08T15:25:11Z
Resource record created
2011-06-08T15:25:11Z
Created
2017-10-18T08:24:06Z
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