Near-IR photometry of Sh2-157 and Sh2-152 Virtual Observatory Resource

Authors
  1. Chen Y.
  2. Yao Y.
  3. Yang J.
  4. Zeng Q.
  5. Sato S.
  6. Published by
    CDS
Abstract

Near-infrared JHK' and H_2_{nu}=1-0S(1) imaging observations of the star-forming regions Sh2-157 and Sh2-152 are presented. The data reveal a cluster of young stars associated with H_2_ line emission in each region. Additionally, many IR point sources are found in the dense core of each molecular cloud. Most of these sources exhibit infrared color excesses typical of T Tauri stars, Herbig Ae/Be stars, and protostars. Several display the characteristics of massive stars. We calculate histograms of the K'-magnitude and [H-K'] color for all sources, as well as two-color and color-magnitude diagrams. The stellar populations inside and outside the clusters are similar, suggesting that these systems are rather evolved. Shock-driven H_2_ emission knots are also detected, which may be related to evident subclusters in an earlier evolutionary stage.

Keywords
  1. infrared-photometry
  2. h-ii-regions
  3. young-stellar-objects
Bibliographic source Bibcode
2009ApJ...693..430C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/693/430
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/693/430
Document Object Identifer DOI
doi:10.26093/cds/vizier.16930430

Access

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https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/693/430
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/693/430
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/693/430
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/ApJ/693/430/phot?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/693/430/phot?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/693/430/phot?

History

2011-03-23T14:19:19Z
Resource record created
2011-03-23T14:19:19Z
Created
2017-07-12T06:59:53Z
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