High- and intermediate-mass YSOs in the LMC Virtual Observatory Resource

Authors
  1. Gruendl R.A.
  2. Chu Y.-H.
  3. Published by
    CDS
Abstract

Archival Spitzer Infrared Array Camera (IRAC) and MIPS observations of the Large Magellanic Cloud (LMC) have been used to search for young stellar objects (YSOs). We have carried out independent aperture photometry of these data and merged the results from different passbands to produce a photometric catalog. To verify our methodology we have also analyzed the data from the SAGE and SWIRE Legacy programs; our photometric measurements are in general agreement with the photometry released by these programs. Using our mid-infrared photometric catalogs and two simple selection criteria, [4.5]-[8.0]>2.0 to exclude normal and evolved stars and [8.0]>14-([4.5]-[8.0]) to exclude background galaxies, we have identified a sample of 2910 sources in the LMC that could potentially be YSOs. We then used the Spitzer observations complemented by optical and near-infrared data to carefully assess the nature of each source. From the examination of the initial sample, we suggest that 1172 sources are most likely YSOs. Spitzer IRS observations of 269 of the brightest YSOs from our sample have confirmed that >~95% are indeed YSOs.

Keywords
  1. infrared-photometry
  2. magellanic-clouds
  3. young-stellar-objects
  4. astronomical-object-identification
Bibliographic source Bibcode
2009ApJS..184..172G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/184/172
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/184/172
Document Object Identifer DOI
doi:10.26093/cds/vizier.21840172

Access

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/184/172/catalog?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/184/172/catalog?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/184/172/catalog?

History

2010-04-01T12:38:12Z
Resource record created
2010-04-01T12:38:12Z
Created
2010-08-22T07:40:40Z
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