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Methanol masers probing magnetic fields during Massive Star-formation 2013-03-13

  • Speaker : Wouter Vlemmings (Chalmers University of Technology)
  • Date : 2013-03-13 16:00 ~ 17:30
  • Location :
Magnetic fields potentially play an important role during massive
star-formation (MSF), especially in stabilizing disks and launching
outflows. Currently, the only information on the magnetic field in
the dense regions close to protostars comes from maser
observations. In particular, it has recently been shown that methanol
masers, the most abundant of the MSF maser species, are excellent
probes of the magnetic field. I will present the status of our
ongoing high angular resolution observations using the European VLBI
Network (EVN). So far, these have revealed energetically dominant and
large scale ordered fields in the majority of MSF regions. In
particular, the observations reveal a likely relation between the
magnetic field direction in and around disks and torii and the
outflow, as predicted by recent models.
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