Long-term fluences of energetic particles in the heliosphere
Abstract
We report energy spectra of He, O, and Fe nuclei, extending from ~0.3 keV/nucleon to ~300 MeV/nucleon, integrated over the period from the Fall of 1997 to mid-2000. These fluence measurements were made at 1 AU using data from the SWICS, ULEIS, SIS, and CRIS instruments on ACE, and include contributions from fast and slow solar wind, coronal mass ejections, pickup ions, impulsive and gradual solar particle events, acceleration in corotating interaction regions and other interplanetary shocks, and anomalous and galactic cosmic rays. Fluence measurements of six additional species are presented in the energy region from ~0.04 to ~100 MeV/nucleon. We discuss the relative contributions of the various particle components, and comment on the shape and time dependence of the measured energy spectra.
Additional Information
© 2001 American Institute of Physics. Issue Date: 21 November 2001.Attached Files
Published - MEWaipcp01b.pdf
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Additional details
- Eprint ID
- 27855
- Resolver ID
- CaltechAUTHORS:20111118-100325232
- Created
-
2011-11-21Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Series Name
- AIP Conference Proceedings
- Series Volume or Issue Number
- 598
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 2003-31