The NAN complex. I. IRAC observations Virtual Observatory Resource

Authors
  1. Guieu S.
  2. Rebull L.M.
  3. Stauffer J.R.
  4. Hillenbrand L.A.
  5. Carpenter J.M.,Noriega-Crespo A.
  6. Padgett D.L.
  7. Cole D.M.
  8. Carey S.J.
  9. Stapelfeldt K.R.,Strom S.E.
  10. Published by
    CDS
Abstract

We present a 9deg^2^ map of the North American and Pelican Nebulae regions obtained in all four Infrared Array Camera (IRAC) channels with the Spitzer Space Telescope. The resulting photometry is merged with that at JHKs from Two Micron All Sky Survey and a more spatially limited BVI survey from previous ground-based work. We use a mixture of color-color diagrams to select a minimally contaminated set of more than 1600 objects that we claim are young stellar objects (YSOs) associated with the star-forming region. Because our selection technique uses infrared excess as a requirement, our sample is strongly biased against inclusion of Class III YSOs. The distribution of IRAC spectral slopes for our YSOs indicates that most of these objects are Class II, with a peak toward steeper spectral slopes but a substantial contribution from a tail of Flat spectrum and Class I type objects. By studying the small fraction of the sample that is optically visible, we infer a typical age of a few Myr for the low-mass population. The young stars are clustered, with about a third of them located in eight clusters that are located within or near the LDN 935 dark cloud. Half of the YSOs are located in regions with surface densities higher than 1000YSOs/deg^2^. The Class I objects are more clustered than the Class II stars.

Keywords
  1. young-stellar-objects
  2. infrared-photometry
  3. nebulae
  4. visible-astronomy
  5. photometry
Bibliographic source Bibcode
2009ApJ...697..787G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/697/787
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/697/787
Document Object Identifer DOI
doi:10.26093/cds/vizier.16970787

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/697/787
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/697/787
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/697/787
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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/ApJ/697/787/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/697/787/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/697/787/table4?

History

2011-05-18T11:41:12Z
Resource record created
2011-05-18T11:41:12Z
Created
2011-06-08T12:58:35Z
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