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Paper: |
CO in Water Fountain Stars: More Than High-Velocity Water |
Volume: |
464, Circumstellar Dynamics at High Resolution |
Page: |
71 |
Authors: |
Rizzo, J. R.; Suárez, O.; Gómez, J. F.; Miranda, L. F.; Osorio, M. |
Abstract: |
Aiming to learn and further model the shaping of planetary nebulae, we are
studying the scarce group of the so-called “Water Fountain” stars, post-AGB
stars probably transitioning from spherical to bipolar nebulae. We have
conducted a complete survey in the two lowest CO and 13CO rotational
lines using the IRAM 30 m radiotelescope at Pico Veleta. We have detected CO
associated to two water fountains, in all the observed lines. We report here
the main features of the detected emission, and some global physical
parameters. |
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