NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
On PAHs as interstellar grains - Infrared absorption coefficientsConsideration is given to the proposal that PAHs are the source of IR continuum and emission features and the visible diffuse bands. Absolute IR cross-sections have been obtained for eight PAHs. The results show that a thermal continuum is not consistent with the spectra obtained, and that an array of normal molecules shows a spectrum that is more complex than the observed spectrum. The cross-sections of the UV spectra are 2-3 orders of magnitude larger than those of the IR spectra. It is suggested that, to account for these observations, structure must be produced in the UV extinction curve.
Document ID
19900031730
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Salisbury, D. W.
(NASA Goddard Space Flight Center Greenbelt; Maryland, University, College Park, United States)
Allen, J. E., Jr.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Donn, B.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Khanna, R. K.
(Maryland, University College Park, United States)
Moore, W. J.
(U.S. Navy, Naval Research Laboratory, Washington DC, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Astrophysics
Accession Number
90A18785
Distribution Limits
Public
Copyright
Other

Available Downloads

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