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Infrared View of the Interstellar Medium

Published online by Cambridge University Press:  04 October 2008

C. Kramer ,
S. Aalto ,
R. Simon  and
T. Onaka
T. Onaka*
Affiliation:
Department of Astronomy, Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan
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Abstract

Variations in the diffuse infrared emission from the Galactic plane areinvestigated in the framework of the present dust model. It is shown that observations are interpreted in terms of superposition ofemission from dust grains in various radiation field intensities. The superposition model can also be applied successfully to observations ofthe Large Magellanic Cloud as well as of external galaxies. Infrared spectroscopy of gaseous species provides information onthe elemental compositionsof interstellar dust grains. Recent observations indicatethat part of silicon atoms reside in rather volatile components other thansilicates, which may call for reconsideration of major components of interstellar dust grains. Latest observations with Spitzer and AKARI in a wide spectral rangewill further improve our understanding of the interstellar medium.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 31: Far-Infrared Workshop 2007 , 2008 , pp. 143 - 148
Copyright
© EAS, EDP Sciences, 2008

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