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The shapes of the circumstellar silicate featuresAround oxygen-rich stars the spectra of most long-period variables (LPV) show an excess infrared emission which is attributed to circumstellar silicate dust grains. It is known that the spectral energy distribution of the 10 micron emissions shows variations from star to star. With the availability of many Infrared Astronomy Satellite (IRAS) Low Resolution Spectra (LRS) in the 8 to 22 micron region, the 10 micron feature can be studied to determine its uniformity (or lack thereof). The excess silicate emissions (10 micron emission), divided into three groups characterized by similar spectral shapes, are discussed.
Document ID
19870005678
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Little-Marenin, I. R. (Air Force Geophysics Lab. Hanscom AFB, MA, United States)
Price, S. D. (Air Force Geophysics Lab. Hanscom AFB, MA, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1986
Publication Information
Publication: NASA. Ames Research Center Summer School on Interstellar Processes: Abstracts of Contributed Papers
Subject Category
Astrophysics
Accession Number
87N15111
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19870005610Collected WorksSummer School on Interstellar Processes: Abstracts of contributed papers
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