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Searching for ammonia in grain mantles toward massive young stellar objects

Authors
Type
Published Article
Journal
The Astrophysical Journal
Publisher
American Astronomical Society
Publication Date
Sep 09, 2001
Volume
558
Issue
2
Pages
702–702
Source
SETI Institute
License
Unknown

Abstract

We present a study of the mid-infrared spectral regions of 17 objects observed with the Short-Wavelength Spectrometer on the Infrared Space Observatory (ISO SWS) in a search for the presence of the elusive NH 3 solid-state absorption features at 2.96 and 9.0 μm. We compare the 3 μm profile with laboratory spectra of pure water and water/ammonia mixtures from the Leiden Molecular Astrophysics database. We determine that the shape of the 3 μm water feature alone does not present conclusive evidence of the presence or ...

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