NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Quenched carbonaceous composite. III - Comparison to the 3.29 micron interstellar emission featureLaboratory data are presented showing that oxidized f-QCC, after heating to 500 C, has a 3.29 micron absorption feature that matches precisely the wavelength of the 3.29 micron interstellar emission feature. In addition, the width of the f-QCC (filmy quenched carbonaceous composite) feature is close to that of the 3.29 micron emission feature observed in NGC 7027, Orion, and IRAS 21282 + 5050. Laboratory spectra of polycyclic aromatic hydrocarbons (PAHs) were also obtained, and comparison of the f-QCC and PAH absorption spectra to that of the 3.29 micron emission feature indicates that the f-QCC provides a much better match. It is thus suggested that f-QCC is representative of the class of material giving rise to the emission features in the interstellar medium.
Document ID
19900044368
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Sakata, A.
(University of Electro-Communications Tokyo, Japan)
Wada, S.
(University of Electro-Communications Chofu, Japan)
Onaka, T.
(Tokyo, University Japan)
Tokunaga, A. T.
(Hawaii, University Honolulu, United States)
Date Acquired
August 14, 2013
Publication Date
April 20, 1990
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 353
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
90A31423
Funding Number(s)
CONTRACT_GRANT: NASW-3159
Distribution Limits
Public
Copyright
Other

Available Downloads

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