GALEX/Spitzer photometry in NGC 7331 Virtual Observatory Resource

Authors
  1. Thilker D.A.
  2. Boissier S.
  3. Bianchi L.
  4. Calzetti D.
  5. Boselli A.
  6. Dale D.A.,Seibert M.
  7. Braun R.
  8. Burgarella D.
  9. Gil De Paz A.
  10. Helou G.
  11. Walter F.,Kennicutt R.C.JR
  12. Madore B.F.
  13. Martin D.C.
  14. Barlow T.A.
  15. Forster K.,Friedman P.G.
  16. Morrissey P.
  17. Neff S.G.
  18. Schiminovich D.
  19. Small T.,Wyder T.K.
  20. Donas J.
  21. Heckman T.M.
  22. Lee Y.-W.
  23. Milliard B.
  24. Rich R.M.,Szalay A.S.
  25. Welsh B.Y.
  26. Yi S.K.
  27. Published by
    CDS
Abstract

We present images of NGC 7331 obtained with GALEX and Spitzer, tracing UV and IR signatures of star formation. NGC 7331's morphology at 8-850um is dominated by a central dust ring. This structure is a vigorous site of star formation (hosting one-third of the present activity) but remains inconspicuous in our GALEX UV imagery. Radial profile analysis and photometry for discrete UV- and UV+IR-selected substructures indicate a decline in UV extinction with increasing galactocentric distance, although highly attenuated star-forming regions can be found throughout the disk. UV-optical surface brightness profiles suggest a recent birthrate parameter (b_8_) that is highest in the outer part of the disk, even though the local star formation intensity peaks in the ring. Bolometric luminosity and UV attenuation are correlated in substructures on 0.4kpc scales, with a relationship similar to that established for starburst galaxies.

Keywords
  1. galaxies
  2. photometry
  3. ultraviolet-astronomy
  4. infrared-photometry
Bibliographic source Bibcode
2007ApJS..173..572T
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/173/572
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/173/572
Document Object Identifer DOI
doi:10.26093/cds/vizier.21730572

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/173/572
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/173/572
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/173/572
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/173/572/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/173/572/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/173/572/table2?

History

2009-07-06T11:25:23Z
Resource record created
2009-07-06T11:25:23Z
Created
2009-07-06T11:32:24Z
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