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Trigonometric parallax, proper motion, and structure of three southern hemisphere methanol masers

Published online by Cambridge University Press:  07 February 2024

Lucas J. Hyland Open the ORCID record for Lucas J. Hyland [Opens in a new window] ,
Simon P. Ellingsen Open the ORCID record for Simon P. Ellingsen [Opens in a new window] ,
Mark J. Reid Open the ORCID record for Mark J. Reid [Opens in a new window] ,
Jayender Kumar  and
Gabor Orosz Open the ORCID record for Gabor Orosz [Opens in a new window]
Lucas J. Hyland*
Affiliation:
School of Natural Sciences, University of Tasmania, Private Bag 37, Hobart, Tasmania 7001, Australia.
Simon P. Ellingsen
Affiliation:
Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA 02138, USA
Mark J. Reid
Affiliation:
Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA 02138, USA
Jayender Kumar
Affiliation:
School of Natural Sciences, University of Tasmania, Private Bag 37, Hobart, Tasmania 7001, Australia. CSIRO, Space and Astronomy, PO Box 76, Epping, NSW 1710, Australia
Gabor Orosz
Affiliation:
School of Natural Sciences, University of Tasmania, Private Bag 37, Hobart, Tasmania 7001, Australia. Joint Institute for VLBI ERIC, Oude Hoogeveensedijk 4, 7991PD Dwingeloo, Netherlands
*
email: lucas.hyland@utas.edu.au
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Abstract

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We present the trigonometric parallax, proper motion, and structure of three methanol masers from the Southern Hemisphere Parallax Interferometric Radio Astrometry Legacy Project (SπRALS). All three masers have better than 5% parallax accuracy, which we attribute to the new inverse MultiView calibration technique.

Keywords

astrometry - proper motionsparallaxesmasers - methanoltechniques - Very Long Baseline Interferometry
Type
Contributed 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. 106 - 110
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Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NoDerivatives licence (http://creativecommons.org/licenses/by-nd/4.0/), which permits re-use, distribution, and reproduction in any medium, provided that no alterations are made and 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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