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Author Arnoldy, R. L. ♦ Lewis, P. B. (Jr.) ♦ Cahill, L. J. (Jr.)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ MAGNETOSPHERE ♦ CHARGED-PARTICLE PRECIPITATION ♦ PULSATIONS ♦ AURORAE ♦ POLARIZATION ♦ RIOMETERS ♦ WAVE PROPAGATION ♦ EARTH ATMOSPHERE ♦ MEASURING INSTRUMENTS ♦ Atmospheric Physics- Magnetospheric Phenomena- (-1987)
Abstract The correlation of Pc 1 and IPDP pulsations with particle precipitation shows that the waves are left (L) polarized when observed simultaneously with precipitation. This is consistent with theoretical understanding of the generation of the pulsations as an L wave in the magnetosphere and the L wave propagation through the ionosphere with horizontal ducting of the R wave. It is suggested that L polarization of Pc 1 and IPDP locates the ULF source field line. Three events studied were IPDP correlated with riometer absorption. The observations strongly support the inward convecting source model for the generation of IPDP. On the other hand, the origin of the particles (presumably electrons) responsible for the riometer absorption is still an open question. Finally, a very long duration Pc 1 (HM emission) event is presented where L polarized wave packets were very closely correlated with auroral light bursts measured at 4278 A wavelength.
Educational Use Research
Learning Resource Type Article
Publisher Date 1979-12-01
Publisher Department Space Science Center, University of New Hampshire, Durham, New Hampshire 03824
Publisher Place United States
Journal J. Geophys. Res.
Volume Number 84
Issue Number A12
Organization Space Science Center, University of New Hampshire, Durham, New Hampshire 03824


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