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WSRT 21-cm continuum field in Cygnus OB2: in search of more Wolf-Rayet stars∗

Published online by Cambridge University Press:  25 May 2016

Diah Y.A. Setia Gunawan ,
Karel A. van der Hucht ,
A. Ger de Bruyn  and
Peredur M. Williams
Diah Y.A. Setia Gunawan
Affiliation:
Kapteyn Astronomical Institute, RU Groningen, the Netherlands Space Research Organization Netherlands, Utrecht, the Netherlands
Karel A. van der Hucht
Affiliation:
Space Research Organization Netherlands, Utrecht, the Netherlands
A. Ger de Bruyn
Affiliation:
Kapteyn Astronomical Institute, RU Groningen, the Netherlands Netherlands Foundation for Research in Astronomy, Dwingeloo, the Netherlands
Peredur M. Williams
Affiliation:
Royal Observatory, Edinburgh, United Kingdom

Abstract

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We present a deep look into the Cygnus OB2 region using the WSRT. A 2° x 2° map of the optically highly-obscured region was obtained at 1400 MHz, with a noise level down to 0.2 mJy and an angular resolution of 1″. We will compare the resulting radio point source list with optical and near-IR catalogues, in order to identify stellar wind sources like WR and OB stars.

Type
Part 1. Basic observational properties of Wolf-Rayet stars and other hot massive stars
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 103 - 104
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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Williams, P.M., Dougherty, S.M., Davis, R.J., van der Hucht, K.A., Bode, M.F., Setia Gunawan, D.Y.A. 1997, MNRAS 289, 10 Google Scholar