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A statistical analysis of dust features in the IRAS low resolution spectra

Published online by Cambridge University Press:  04 August 2017

O. Gal
Affiliation:
1. Service d'Astrophysique, CEN Saclay, 91191 Gif sur Yvette, France
M. de Muizon
Affiliation:
2. Huygens Laboratory, Sterrewacht Leiden, The Netherlands and Observatoire de Meudon, France
R. Papoular
Affiliation:
1. Service d'Astrophysique, CEN Saclay, 91191 Gif sur Yvette, France
B. Pégourié
Affiliation:
1. Service d'Astrophysique, CEN Saclay, 91191 Gif sur Yvette, France

Abstract

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Using the IRAS catalog of low resolution spectra (LRS), we have analyzed the silicate features in emission and absorption, the carbon-rich emission features and the featureless spectra, in the range 8–22 μm. The sample sizes are large enough to allow average properties to be established (e.g. energy distributions), as well as correlations between luminosities, excesses, colors and coordinates, and histograms and galactic distributions, all with a good degree of confidence.

Type
Circumstellar Shells and Envelopes
Copyright
Copyright © Reidel 1987