NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Search for auroral belt E-parallel fields with high-velocity barium ion injectionsIn April 1984, four high-velocity shaped-charge Ba(+) injections were conducted from two sounding rockets at 770-975 km over northern Alaska under conditions of active auroral and magnetic disturbance. Spatial ionization (brightness) profiles of high-velocity Ba(+) clouds from photometric scans following each release were found to be consistent with the 28-sec theoretical time constant for Ba photoionization determined by Carlsten (1975). These observations therefore revealed no evidence of anomalous fast ionization predicted by the Alfven critical velocity hypothesis.
Document ID
19890036918
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Heppner, J. P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ledley, B. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Miller, M. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Marionni, P. A.
(Science Applications Research Lanham, MD, United States)
Pongratz, M. B.
(Los Alamos National Laboratory NM, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
89A24289
Distribution Limits
Public
Copyright
Other

Available Downloads

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