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Chemical differentiation in the inner envelope of a young high-mass protostar associated with Class II methanol maser emission

Published online by Cambridge University Press:  16 July 2018

T. Csengeri ,
S. Bontemps ,
F. Wyrowski ,
A. Belloche ,
K. M. Menten ,
S. Leurini  and
the SPARKS team
T. Csengeri
Affiliation:
Max Planck Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany email: csengeri@mpifr.de
S. Bontemps
Affiliation:
OASU/LAB-UMR5804, CNRS, Université Bordeaux, allée Geoffroy Saint-Hilaire, 33615 Pessac, France
F. Wyrowski
Affiliation:
Max Planck Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany email: csengeri@mpifr.de
A. Belloche
Affiliation:
Max Planck Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany email: csengeri@mpifr.de
K. M. Menten
Affiliation:
Max Planck Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany email: csengeri@mpifr.de
S. Leurini
Affiliation:
Max Planck Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany email: csengeri@mpifr.de
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Abstract

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We present a case study of a single high-mass protostar associated with an infrared quiet massive clump selected from the ATLASGAL survey. The thermal dust emission reveals a single collapsing object associated with a prominent molecular outflow. We detect bright emission from a torsionally excited state transition of CH3OH offset from the protostar that is well explained by shocks at the transition from the infalling envelope onto an accretion disk.

Keywords

stars: formationISM: kinematics and dynamicsISM: molecules
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. 331 - 333
Copyright
Copyright © International Astronomical Union 2018 

References

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Green, J. A., Caswell, J. L., Fuller, G. A. et al., 2012, MNRAS, 420, 3108Google Scholar
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