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Fully 3D modelling of masers towards AGB stars - latest development and early results

Published online by Cambridge University Press:  07 February 2024

B. Pimpanuwat Open the ORCID record for B. Pimpanuwat [Opens in a new window] ,
M. D. ,
Gray Open the ORCID record for Gray [Opens in a new window] ,
S. ,
Etoka Open the ORCID record for Etoka [Opens in a new window] ,
W. ,
Homan ,
A. M. S.  and
Richards Open the ORCID record for Richards [Opens in a new window]
B. Pimpanuwat*
Affiliation:
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, M13 9PL, UK.
Gray
Affiliation:
National Astronomical Research Institute of Thailand, 260 Moo 4, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand
Etoka
Affiliation:
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, M13 9PL, UK.
Homan
Affiliation:
Institut d’Astronomie et d’Astrophysique, Université Libre de Bruxelles (ULB), CP 226, 1050 Brussels, Belgium
Richards
Affiliation:
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, M13 9PL, UK.
*
email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

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We present new results from a 3D modelling code for maser flares which provides the user with control over the physical conditions; maser cloud geometry and orientation; and fast runtime via parallelisation. The statistics of simulated observables suggest that achievable amplification may be dependent on viewpoints of the source and that a randomly placed observer is likely to detect an unremarkable blue- or red-shifted maser unless the line-of-sight direction is optimal for maser amplification. A preliminary model of masers towards π1 Gru based on SPH simulations also shows promising consistency with ALMA observations of high-j SiO transitions from the source.

Keywords

MasersMolecular processesRadiative transferStars: AGB and post-AGB
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S380: Cosmic Masers: Proper Motion toward the Next-Generation Large Projects , December 2022 , pp. 383 - 385
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re- use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

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