High resolution magnetic field measurements in high-mass star-forming regions using masers
Paper in proceeding, 2012

The 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.





G. Surcis

Joint Institute for VLBI in Europe (JIVE)

Wouter Vlemmings

Chalmers, Earth and Space Sciences, Radio Astronomy and Astrophysics

H.J. van Langevelde

Leiden University

Joint Institute for VLBI in Europe (JIVE)

B. Hutarawarakorn Kramer

Max Planck Society

Proceedings of the International Astronomical Union

1743-9213 (ISSN) 1743-9221 (eISSN)

Vol. 8 5287 69-73
978-110703284-2 (ISBN)

The XXVIIIth General Assembly of the International Astronomical Union (IAU)
Beijing, China,

Subject Categories

Astronomy, Astrophysics and Cosmology


Basic sciences



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