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Identifying the Youngest Proto Planetary Nebulae

Published online by Cambridge University Press:  15 December 2006

B. M. Lewis
B. M. Lewis
Affiliation:
Arecibo Observatory, HC3 Box 53995, Arecibo PR00612, USA email: [email protected]
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Abstract

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Detached shells can be identified from their NIR & MIR colours. We use this to identify PPN candidates, including three like IRAS 18455+0448. These are 19178+1206, 18470+0015 & 18123+0511.

Keywords

stars: AGB and post-AGB
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S234: Planetary Nebulae in our Galaxy and Beyond , April 2006 , pp. 449 - 450
Copyright
© 2006 International Astronomical Union