Published in

Cambridge University Press (CUP), Proceedings of the International Astronomical Union, S336(13), p. 373-376

DOI: 10.1017/s1743921317010547

Oxford University Press (OUP), Monthly Notices of the Royal Astronomical Society, 1(476), p. 520-527, 2018

DOI: 10.1093/mnras/sty239

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Registration of H2O and SiO masers in the Calabash Nebula, to confirm the Planetary Nebula paradigm

Journal article published in 2017 by R. Dodson ORCID, M. Rioja, V. Bujarrabal, J. Kim ORCID, S. H. Cho, Y. K. Choi, Y. Youngjoo
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractWe report on the astrometric registration of VLBI images of the SiO and H2O masers in OH 231.8+4.2, the iconic Proto-Planetary Nebula also known as the Calabash nebula, using the KVN and Source/Frequency Phase Referencing. This, for the first time, robustly confirms the alignment of the SiO masers, close to the AGB star, which drives the bi-lobe structure with the water masers in the out-flow.

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