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Where methanol masers spring

Published online by Cambridge University Press:  01 March 2007

Karl J. E. Torstensson ,
Huib Jan van Langevelde  and
Stephen Bourke
Karl J. E. Torstensson
Affiliation:
Leiden ObservatoryP.O. Box 9513, 2300 RA Leiden, The Netherlands email: kalle@strw.leidenuniv.nl Joint Institute for VLBI in EuropePostbus 2, 7990 AA Dwingeloo,The Netherlands email: langevelde@jive.nl
Huib Jan van Langevelde
Affiliation:
Leiden ObservatoryP.O. Box 9513, 2300 RA Leiden, The Netherlands email: kalle@strw.leidenuniv.nl Joint Institute for VLBI in EuropePostbus 2, 7990 AA Dwingeloo,The Netherlands email: langevelde@jive.nl
Stephen Bourke
Affiliation:
National University of Ireland, Galway Department of Information Technology, National University of Ireland, Galway, Ireland email: stephen@it.nuigalway.ie
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Abstract

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We are carrying out a program to observe the 6.7 GHz methanol maser emission in high-mass star-forming regions using large FOV (~2'), astrometric, VLBI data. Here we report on the first results of the inner few arc seconds in Cepheus A East. We find a maser filament extending over ~1.7” (1200 AU), straddling the waist of Cep A HW2. The region in which the CH3OH masers are found contains several YSO's and it is not clear whether the CH3OH masers are associated with several different objects or rather the larger scale surrounding environment.

Keywords

masersstars: formationstars: individual (Cepheus A)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S242: Astrophysical Masers and their Environments , March 2007 , pp. 178 - 179
Copyright
Copyright © International Astronomical Union 2008

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