Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published September 15, 1994 | Published
Journal Article Open

Observations of the Remnants of the Ultrarelativistic Electrons Injected by the Strong SSC of 24 March 1991


Data from the SAMPEX spacecraft has shown the presence near L = 1.9 of the remnants of the ultrarelativistic electrons (above 15 MeV) injected into the magnetosphere on 24 March 1991. The decay of the electrons has been tracked since July 1992. The electron e-folding lifetime is in the range of six to twelve months, and the location in L of the peak intensity moved inward by ∼0.05 units in one year. The inferred electron lifetime is similar to that of ∼0.5 MeV electrons, which is in agreement with extrapolation to higher energies of the theoretical estimates of Lyons and Thorne (1972).

Additional Information

Copyright 1994 by the American Geophysical Union. (Received: February 25, 1994; revised: May 19, 1994; accepted: June 8, 1994.) This work was supported by NASA at The Aerospace Corporation under NASA Cooperative Agreement 26979B and at the California Institute of Technology under contract NAS5-30704 and grant NAGW-1919. One of us (MDL) was supported by an NRC Research Associateship. The authors would like to acknowledge several discussions with Larry Lyons and Mike Schulz on the lifetimes of radiation-belt energetic electrons, and with Richard Selesnick on the calibration of PET.

Attached Files

Published - 1995-02.pdf


Files (1.3 MB)
Name Size Download all
1.3 MB Preview Download

Additional details

August 20, 2023
August 20, 2023