High resolution magnetic field measurements in high-mass star-forming regions using masers
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 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.

Stars:formation

polarization

masers:methanol

Författare

G. Surcis

Joint Institute for VLBI in Europe (JIVE)

Wouter Vlemmings

Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik

H.J. van Langevelde

Joint Institute for VLBI in Europe (JIVE)

Universiteit Leiden

B. Hutarawarakorn Kramer

Max Planck-institutet

Proceedings of the International Astronomical Union

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

Vol. 8 S287 69 - 73

Ämneskategorier

Astronomi, astrofysik och kosmologi

Fundament

Grundläggande vetenskaper

DOI

10.1017/S1743921312006667

ISBN

9781107032842