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| Paper: |
Probing Collimated Outflows from Post-AGB Stars with
H2 |
| Volume: |
445, Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants |
| Page: |
327 |
| Authors: |
Forde, K. P.; Gledhill, T. M.; Smith, M. D. |
| Abstract: |
We present K-band integral field spectroscopy observations of the
circumstellar envelope of the post-asymptotic giant branch star
IRAS 16594-4656, revealing several collisionally excited H2 emission
lines.
The principal aim of this work is to investigate the nature of the H2
excitation mechanisms via line transitions coupled with shock model
predictions for these transitions.
Spatial and spectral information were simultaneously acquired using
the SINFONI integral field unit on VLT with adaptive optics;
the medium resolution mode covering the
entire K-band (1.95 – 2.45μm) was used. |
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