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1D radiative transfer models of 21 and 30 μm emission features in proto-planetary nebulae

Published online by Cambridge University Press:  30 August 2012

Chinnathambi Muthumariappan  and
Bacham E. Reddy
Chinnathambi Muthumariappan
Affiliation:
Vainu Bappu Observatory, Indian Institute of Astrophysics, Kavalur, 635 701India email: muthu@iiap.res.in
Bacham E. Reddy
Affiliation:
Indian Institute of Astrophysics, Koramangala, Bangalore 560 034India email: ereddy@iiap.res.in
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Abstract

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Spectral energy distributions of six proto-planetary nebulae showing 21 and 30μ features were fit with models obtained from 1D radiative transfer code, taking FeO and MgS respectively are the carriers of the features. Atomic abundances of these carrier materials were derived and they are lower or comparable to their stellar photospheric values. This stregthens the possibility of these materials to become the carriers of their respective features.

Keywords

stars: AGB and post-AGBinfrared: starsradiative transfer
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S283: Planetary Nebulae: An Eye to the Future , July 2011 , pp. 456 - 457
Copyright
Copyright © International Astronomical Union 2012

References

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