VLA & Chandra obs. of IRAS20126+4104 region Virtual Observatory Resource

Authors
  1. Montes V.A.
  2. Hofner P.
  3. Anderson C.
  4. Rosero V.
  5. Published by
    CDS
Abstract

We present results from Chandra ACIS-I and Karl G. Jansky Very Large Array 6cm continuum observations of the IRAS 20126+4104 massive star-forming region. We detect 150 X-ray sources within the 17'x17' ACIS-I field, and a total of 13 radio sources within the 9.2' primary beam at 4.9GHz. Among these observations are the first 6cm detections of the central sources reported by Hofner et al. (2007A&A...465..197H), namely, I20N1, I20S, and I20var. A new variable radio source is also reported. Searching the 2MASS archive, we identified 88 near-infrared (NIR) counterparts to the X-ray sources. Only four of the X-ray sources had 6cm counterparts. Based on an NIR color-color analysis and on the Besancon simulation of Galactic stellar populations, we estimate that approximately 80 X-ray sources are associated with this massive star-forming region. We detect an increasing surface density of X-ray sources toward the massive protostar and infer the presence of a cluster of at least 43 young stellar objects within a distance of 1.2pc from the massive protostar.

Keywords
  1. x-ray-sources
  2. astronomical-object-identification
  3. infrared-photometry
  4. radio-continuum-emission
Bibliographic source Bibcode
2015ApJS..219...41M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/219/41
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/219/41
Document Object Identifer DOI
doi:10.26093/cds/vizier.22190041

Access

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/219/41
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http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/219/41/table1?
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http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/219/41/table4?

History

2016-01-18T11:28:51Z
Resource record created
2016-01-18T11:28:51Z
Created
2017-01-23T22:00:00Z
Updated

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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cds-question@unistra.fr