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Composition and energetics of solar flare particle events measured by satellites, 1989--1991

Description: The Synchronous Orbit Particle Analyzer (SOPA), on board the satellite 1989-046 and others, has detected ions from carbon through nickel at energies from 2 to 50 MeV in the great solar energetic particle events of the current solar cycle. Energetic protons from the same events have been detected by the Charged Particle Analyzer (CPA) on board the satellite 1984-129 and others. We present here a collection of data from these various instruments that includes events of 1989, 1990, and 1991. We de… more
Date: January 1, 1991
Creator: Gisler, G.R.; Belian, R.D.; Cayton, T.E. & Reeves, G.D.
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Partner: UNT Libraries Government Documents Department
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New perspectives on substorm injections

Description: There has been significant progress in understanding substorm injections since the Third International Conference on Substorms in 1996. Progress has come from a combination of new theories, quantitative modeling, and observations--particularly multi-satellite observations. There is now mounting evidence that fast convective flows are the mechanism that directly couples substorm processes in the mid tail, where reconnection occurs, with substorm processes the inner magnetosphere where Pi2 pulsat… more
Date: December 1, 1998
Creator: Reeves, G.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Observations of magnetospheric substorms occurring with no apparent solar wind/IMF trigger

Description: An outstanding topic in magnetospheric physics is whether substorms are always externally triggered by disturbances in either the interplanetary magnetic field or solar wind, or whether they can also occur solely as the result of an internal magnetospheric instability. Over the past decade, arguments have been made on both sides of this issue. Horwitz and McPherron have shown examples of substorm onsets which they claimed were not externally triggered. However, as pointed out by Lyons, there ar… more
Date: March 1, 1996
Creator: Henderson, M.G.; Reeves, G.D.; Belian, R.D. & Murphree, J.S.
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Partner: UNT Libraries Government Documents Department
open access

The energy spectrometer for particles (ESP): Instrument description and orbital performance

Description: The ESP detector is functionally described, along with the pertinent orbital and spin properties of the spacecraft that supports it. The phoswiched plastic/BGO scintillators sensor design, electronic implementation, and resulting data types are recounted, and the ground calibration procedures are reported. Several illustrative examples of data are given, including the solar proton event of 29 September 1989, and the nearly periodic episodes of high relativistic electron flux that are associated… more
Date: December 31, 1994
Creator: Meier, M.M.; Belian, R.D.; Cayton, T.E.; Christensen, R.; Garcia, B.; Grace, K. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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