LMC point source classification in SAGE-Spec Virtual Observatory Resource

Authors
  1. Woods P.M.
  2. Oliveira J.M.
  3. Kemper F.
  4. van Loon J.T.
  5. Sargent B.A.,Matsuura M.
  6. Szczerba R.
  7. Volk K.
  8. Zijlstra A.A.
  9. Sloan G.C.
  10. Lagadec E.,McDonald I.
  11. Jones O.
  12. Gorjian V.
  13. Kraemer K.E.
  14. Gielen C.
  15. Meixner M.,Blum R.D.
  16. Sewilo M.
  17. Riebel D.
  18. Shiao B.
  19. Chen C.-H.R.
  20. Boyer M.L.,Indebetouw R.
  21. Antoniou V.
  22. Bernard J.-P.
  23. Cohen M.
  24. Dijkstra C.,Galametz M.
  25. Galliano F.
  26. Gordon K.D.
  27. Harris J.
  28. Hony S.
  29. Hora J.L.,Kawamura A.
  30. Lawton B.
  31. Leisenring J.M.
  32. Madden S.
  33. Marengo M.
  34. McGuire C.,Mulia A.J.
  35. O'Halloran B.
  36. Olsen K.
  37. Paladini R.
  38. Paradis D.
  39. Reach W.T.,Rubin D.
  40. Sandstrom K.
  41. Soszynski I.
  42. Speck A.K.
  43. Srinivasan S.,Tielens A.G.G.M.
  44. van Aarle E.
  45. van Dyk S.D.
  46. Van Winckel H.
  47. Vijh U.P.,Whitney B.
  48. Wilkins A.N.
  49. Published by
    CDS
Abstract

We present the classification of 197 point sources observed with the Infrared Spectrograph in the SAGE-Spec Legacy programme on the Spitzer Space Telescope. We introduce a decision-tree method of object classification based on infrared spectral features, continuum and spectral energy distribution shape, bolometric luminosity, cluster membership and variability information, which is used to classify the SAGE-Spec sample of point sources. The decision tree has a broad application to mid-infrared spectroscopic surveys, where supporting photometry and variability information are available. We use these classifications to make deductions about the stellar populations of the Large Magellanic Cloud and the success of photometric classification methods. We find 90 asymptotic giant branch (AGB) stars, 29 young stellar objects, 23 post-AGB objects, 19 red supergiants, eight stellar photospheres, seven background galaxies, seven planetary nebulae, two HII regions and 12 other objects, seven of which remain unclassified.

Keywords
  1. Magellanic Clouds
  2. Surveys
  3. Astronomical object identification
Bibliographic source Bibcode
2011MNRAS.411.1597W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/411/1597
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/411/1597

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/411/1597
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/411/1597
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/411/1597
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/411/1597/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/411/1597/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/411/1597/table3?

History

2011-10-14T15:43:59Z
Resource record created
2011-10-14T15:43:59Z
Created
2014-02-18T07:12:27Z
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