Impulsive 2--10 keV solar electron events not associated with flares

Journal Article · Sat Mar 01 04:00:00 EST 1980 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183206· OSTI ID:5450266

Potter, D W; Lin, R P; Anderson, K A

Data from the ISEE3 satellite reveal a class of impulsive solar electron events with no measurable increase in flux above 10--20 keV. The flux histories and angular distributions indicate that the electrons propagate through interplanetary space with little or no scattering. The smooth extension of the power-law energy spectra down to the limit of the observations at 2 keV indicates that the electrons are accelerated at altitudes greater than 0.5 R/sub sun/ in the solar corona. Although these events occur more frequently than any other type of impulsive solar particle event observed, we have found no correlation with flares or flare-related activity. However, there is a close correlation with low-frequency (<1 MHz) type III radio bursts.

• Research Organization: Space Sciences Laboratory, University of California
• OSTI ID: 5450266
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 236:2; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics &amp; Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY SPECTRA
FERMIONS
INTERPLANETARY SPACE
LEPTONS
RADIATIONS
RADIOWAVE RADIATION
SOLAR ACTIVITY
SOLAR CORONA
SOLAR ELECTRONS
SOLAR FLARES
SOLAR PARTICLES
SOLAR RADIATION
SOLAR RADIO BURSTS
SOLAR WIND
SPACE
SPECTRA
STELLAR RADIATION