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Maser Emission in G 339.884−1.259

Published online by Cambridge University Press:  16 July 2018

V. Krishnan ,
L. Moscadelli ,
S. P. Ellingsen ,
H. E. Bignall ,
S. L. Breen ,
R. Dodson ,
L. J. Hyland ,
C. J. Phillips ,
C. Reynolds  and
J. Stevens
V. Krishnan
Affiliation:
INAF – Osservatorio Astrofisico di Arcetri
L. Moscadelli
Affiliation:
INAF – Osservatorio Astrofisico di Arcetri
S. P. Ellingsen
Affiliation:
University of Tasmania
H. E. Bignall
Affiliation:
CSIRO Astronomy and Space Science
S. L. Breen
Affiliation:
University of Sydney
R. Dodson
Affiliation:
ICRAR University of Western Australia email: [email protected]
L. J. Hyland
Affiliation:
University of Tasmania
C. J. Phillips
Affiliation:
CSIRO Astronomy and Space Science
C. Reynolds
Affiliation:
CSIRO Astronomy and Space Science
J. Stevens
Affiliation:
CSIRO Astronomy and Space Science
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Abstract

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We present multi–epoch VLBI observations of the methanol and water masers in the high–mass star formation region G 339.884−1.259, made using the Australian Long Baseline Array (LBA). Our sub–milliarcsecond precision measurements trace the proper motions of individual maser features in the plane of the sky. When combined with the direct line–of–sight radial velocity (vlsr), these measure the 3 D gas kinematics of the associated high–mass star formation region, allowing us to probe the dynamical processes to within 1000 AU of the core.

Keywords

masersstars: formation
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. 334 - 335
Copyright
Copyright © International Astronomical Union 2018 

References

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