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Proceedings of ISKAF2010 Science Meeting — PoS(ISKAF2010)

DOI: 10.22323/1.112.0081

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The role of the magnetic field in the massive star-forming region W75N.

Journal article published in 2010 by Gabriele Surcis ORCID, Wouter H. T. Vlemmings
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

A number of different formation scenarios of high-mass have been proposed. However, due to the difficulties observing magnetic fields during the protostellar phase of high-mass star-formation, several questions remain unanswered, e.g., how do magnetic fields influence the formation and dynamics of disks and outflows? Most current information on magnetic fields close to high-mass protostars comes from polarized maser emissions, which allow us to investigate the magnetic field on small scales by using very long baseline interferometry such as EVN and VLBA. Recently, by using maser observations at 6.7 GHz (methanol) and 22 GHz (water), we were able to detect the magnetic field in the massive star-forming region W75N. In particular we detected two differ-ent magnetic fields around the two radio sources VLA 1 and VLA 2, which are at two different evolutionary stages.