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Published in

Cambridge University Press, Proceedings of the International Astronomical Union, S287(8), p. 69-73, 2012

DOI: 10.1017/s1743921312006667

Proceedings of 11th European VLBI Network Symposium & Users Meeting — PoS(11th EVN Symposium)

DOI: 10.22323/1.178.0034

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High resolution magnetic field measurements in high-mass star-forming regions using masers

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Data provided by SHERPA/RoMEO

Abstract

AbstractThe bright and narrow spectral line emission of masers is ideal for measuring the Zeeman-splitting as well as for determining the orientation of magnetic fields in 3-dimensions around massive protostars. Recently, polarization observations at milliarcsecond resolution of 6.7-GHz CH3OH masers have uniquely been able to resolve the morphology of magnetic fields close to massive protostars. The observations reveal that the magnetic fields are along outflows and/or on the surfaces of circumstellar tori. Here we present three different examples selected from a total number of 7 massive star-forming regions that were investigated at 6.7-GHz with the EVN in the last years.