Registration of H2O and SiO masers in the Calabash Nebula, to confirm the Planetary Nebula paradigm
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Published:2017-09
Issue:S336
Volume:13
Page:373-376
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ISSN:1743-9213
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Container-title:Proceedings of the International Astronomical Union
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language:en
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Short-container-title:Proc. IAU
Author:
Dodson R.,Rioja M.,Bujarrabal V.,Kim J.,Cho S. H.,Choi Y. K.,Youngjoo Y.
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.
Publisher
Cambridge University Press (CUP)
Subject
Astronomy and Astrophysics,Space and Planetary Science
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