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ISO Observations of Solid-State Features in Circumstellar Disks

Published online by Cambridge University Press:  25 May 2016

C. Waelkens ,
K. Malfait  and
L. B. F. M. Waters
C. Waelkens
Affiliation:
Instituut voor Sterrenkunde, Celestijnenlaan 200B, B-3001 Leuven, Belgium
K. Malfait
Affiliation:
Instituut voor Sterrenkunde, Celestijnenlaan 200B, B-3001 Leuven, Belgium
L. B. F. M. Waters
Affiliation:
Instituut voor Sterrenkunde, Celestijnenlaan 200B, B-3001 Leuven, Belgium Astronomical Institute, Universiteit van Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands

Abstract

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ISO has opened new infrared windows for spectroscopy, enabling detailed studies of the composition of the dust particles present in circumstellar disks. For oxygen-rich dust, and in particular for silicates, a forest of new features has been discovered, and comparison with laboratory data has enabled the identification of most of them. Of special relevance is the detection of crystalline silicates, which present themselves as a new diagnostic for studying the formation of comets and planetesimals in the disks surrounding young and, surprisingly, also evolved stars.

Type
Part 7. Circumstellar Disks
Information
Symposium - International Astronomical Union , Volume 197: Astrochemistry: From Molecular Clouds to Planetary Systems , 2000 , pp. 435 - 444
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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