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Sub-mm spectral astrometric VLBI with the ngEHT

Published online by Cambridge University Press:  07 February 2024

Richard Dodson Open the ORCID record for Richard Dodson [Opens in a new window]  and
Maria J. Rioja
Richard Dodson*
Affiliation:
ICRAR, M468, The University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia, 6009.
Maria J. Rioja
Affiliation:
ICRAR, M468, The University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia, 6009. CSIRO Astronomy and Space Science, PO Box 1130, Bentley WA 6102, Australia Observatorio Astronómico Nacional (IGN), Alfonso XII, 3 y 5, 28014 Madrid, Spain
*
email: richard.dodson@icrar.org
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Abstract

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We present the prospects from astrometric spectral line VLBI in the era of ngEHT. We review the potential targets, that span many interesting science cases. We summarise the approaches that have been demonstrated to work at lower frequencies and touch on the simulations that give us great confidence that these same approaches will continue to work at sub-mm wavelengths. We conclude that this is a worthwhile pursuit with a high probability of success.

Keywords

Astrophysics - astrometryAstrophysics - masersAstrophysics - Instrumentation and Methods for Astrophysics
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. 498 - 502
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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

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