NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Spectroscopy of the Kleinmann-Low nebula - Scattering in a solid absorption bandSpectroscopic observations (2.4-3.6 microns) of BN, IRc 2, 3, and 4, and three scattering locations in the KL reflection nebula are reported. A previous report (Knacke et al., 1982) of a 2.97-micron spectral feature in the BN object is not confirmed in the new data. The 2.97-micron feature is observed in sources in the KL nebula, and the spectrum is distorted by a nearby hydrogen line. All the spectra are dominated by absorption along the radiation path, making scattering effects difficult to separate. Scattering could broaden the 3.1-micron interstellar-ice feature, but the effects appear to be small. Except for a long-wavelength wing, the spectra can be modeled reasonably well with core-mantle, silicate-water-ice grains. The wing position and intensity indicate bands of C-H groups of ammonia-ice mixtures.
Document ID
19880026293
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Knacke, R. F.
(State Univ. of New York Stony Brook, NY, United States)
Mccorkle, S. M.
(New York, State University Stony Brook, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1987
Publication Information
Publication: Astronomical Journal
Volume: 94
ISSN: 0004-6256
Subject Category
Astrophysics
Accession Number
88A13520
Funding Number(s)
CONTRACT_GRANT: NAG2-56
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available