Skip to main content Accessibility help

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

  • R. Dodson (a1), M. Rioja (a1) (a2) (a3), V. Bujarrabal (a3), J. Kim (a4), S. H. Cho (a5), Y. K. Choi (a5) and Y. Youngjoo (a5)...


We 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.



Hide All
Choi, Y. K., Brunthaler, A., Menten, K. M., & Reid, M. J. 2012 (July). Pages 407–410 of: Booth, R. S., Vlemmings, W. H. T., & Humphreys, E. M. L. (eds), Cosmic Masers - from OH to H0. IAU Symposium, vol. 287.
Cohen, M. 1981. PASP, 93(June), 288290.
Desmurs, J.-F., Alcolea, J., Bujarrabal, V., Sánchez Contreras, C., & Colomer, F. 2007. A&A, 468 (June), 189192.
Dodson, R., et al., 2014. AJ, 148(Nov.), 97.
Dodson, R., Rioja, M. J., Bujarrabal, V., Kim, J., Cho, S. H., Choi, Y. K. & Youngjoo, Y., 2017. MNRAS, Submitted
Elitzur, M. (ed). 1992. Astronomical masers. Astrophysics and Space Science Library, vol. 170.
Leal-Ferreira, M. L., Vlemmings, W. H. T., Diamond, P. J., Kemball, A., Amiri, N., & Desmurs, J.-F. 2012. A&A, 540(Apr.), A42.
Rioja, M., Dodson, R., Gómez, J., Molina, S., Jung, T., & Sohn, B. 2017. Galaxies, 5(Jan.), 9.
Rioja, M. J., 2014. AJ, 148(Nov.), 84.
Rioja, M. J., Dodson, R., Jung, T., & Sohn, B. W. 2015. AJ, 150(Dec.), 202.
Sánchez Contreras, C., Desmurs, J. F., Bujarrabal, V., Alcolea, J., & Colomer, F. 2002. Submilliarcsecond-resolution mapping of the 43 GHz SiO maser emission in the bipolar post-AGB nebula OH231.8+4.2. A&A, 385(Apr.), L1L4.
Sánchez Contreras, C., Gil de Paz, A., & Sahai, R. 2004. ApJ, 616(Nov.), 519524.
Yoon, D. H., Cho, S. H., Yun, Y. J., Choi, Y. H., Dodson, R., Rioja, M., Kim, J., Kim, D., Yang, H., Imai, H. & Byun, D. Y. 2017. Nature, Submitted.
MathJax is a JavaScript display engine for mathematics. For more information see



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed