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Methanol masers and magnetic field in IRAS18089-1732

Published online by Cambridge University Press:  16 July 2018

Daria Dall’Olio ,
W. H. T. Vlemmings ,
G. Surcis ,
H. Beuther ,
B. Lankhaar ,
M. V. Persson ,
A. M. S. Richards  and
E. Varenius
Daria Dall’Olio
Affiliation:
Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Observatorievägen 90, 43992 Onsala, Sweden email: daria.dallolio@chalmers.se
W. H. T. Vlemmings
Affiliation:
Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Observatorievägen 90, 43992 Onsala, Sweden email: daria.dallolio@chalmers.se
G. Surcis
Affiliation:
INAF–Osservatorio Astronomico di Cagliari, Via della Scienza 5, 09047 Selargius, Italy
H. Beuther
Affiliation:
Max-Planck-Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
B. Lankhaar
Affiliation:
Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Observatorievägen 90, 43992 Onsala, Sweden email: daria.dallolio@chalmers.se
M. V. Persson
Affiliation:
Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Observatorievägen 90, 43992 Onsala, Sweden email: daria.dallolio@chalmers.se
A. M. S. Richards
Affiliation:
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, M139PL Manchester, UK
E. Varenius
Affiliation:
Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Observatorievägen 90, 43992 Onsala, Sweden email: daria.dallolio@chalmers.se
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Abstract

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Theoretical simulations have shown that magnetic fields play an important role in massive star formation: they can suppress fragmentation in the star forming cloud, enhance accretion via disc and regulate outflows and jets. However, models require specific magnetic configurations and need more observational constraints to properly test the impact of magnetic fields. We investigate the magnetic field structure of the massive protostar IRAS18089-1732, analysing 6.7 GHz CH3OH maser MERLIN observations. IRAS18089-1732 is a well studied high mass protostar, showing a hot core chemistry, an accretion disc and a bipolar outflow. An ordered magnetic field oriented around its disc has been detected from previous observations of polarised dust. This gives us the chance to investigate how the magnetic field at the small scale probed by masers relates to the large scale field probed by the dust.

Keywords

stars: formationmagnetic fieldmaserspolarization
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S336: Astrophysical Masers: Unlocking the Mysteries of the Universe , September 2017 , pp. 285 - 286
Copyright
Copyright © International Astronomical Union 2018 

References

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