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| Paper: |
The Mass Loss History of WX Psc |
| Volume: |
476, New Trends in Radio Astronomy in the ALMA Era |
| Page: |
395 |
| Authors: |
Trejo, A.; Zhao-Geisler, R.; Kemper, F. |
| Abstract: |
WX Psc is a very-late type (oxygen-rich) and long-period variable AGB star.
The mass loss history was inferred by Decin et al. (2007) from single
dish observations of multiple rotational transitions of CO using radiative
transfer modelling. In this
work we do a similar analysis using interferometric observations,
from the SMA in the CO 2–1 transition, and from the PdBI in the
CO 2–1 and 1–0 transitions. We also analysed single-dish maps obtained
with APEX in CO 3–2 and 2–1. This
allows to observe the extended emission and test the mass loss history
derived at different angular scales and therefore time scales.
Here we present our current findings and future work on this project. |
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