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VLA Search for Optically Thick H II Regions in Luminous Embedded Infrared Sources

Published online by Cambridge University Press:  04 August 2017

Paul T.P. Ho  and
T. N. Rengarajan
Paul T.P. Ho
Affiliation:
Center for Astrophysics, Cambridge, MA 02138, USA
T. N. Rengarajan
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay-400 005, India

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We have searched for radio continuum emission at 15 GHz from a number of deeply embedded protostar like infrared objects, using the B configuration of the VLA. The aim was to get high resolution (1″) and high sensitivity maps. For 10 objects (NGC 7538-IRS 3, GL 989, GL 4029-IRS 1, GL 437N, GL 2789, NGC 1333-IRS 13, S235B, GL 4029-IRS 2, R Mon and OMC2-IRS 3) we did not detect radio emission, the 3 upper limit being 0.3 – 0.5 mJy. Positive detections were made for W33A, 0MC2-IRS 4, S 235-IRS 1 and NGC 6334V-IRS 4. The cleaned maps for these objects are shown in Figures 1-4.

Type
I. Star Forming Processes in the Solar Neighborhood
Information
Symposium - International Astronomical Union , Volume 115: Star Forming Regions , 1987 , pp. 185 - 186
Copyright
Copyright © Reidel 1987 

References

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