Mewaldt, R. A. and Leske, R. A. and Shih, A. Y. and Stone, E. C. and Barghouty, A. F. and Cohen, C. M. S. and Cummings, A. C. and Labrador, A. W. and von Rosenvinge, T. T. and Wiedenbeck, M. E. (2009) Observation and Interpretation of Energetic Neutral Hydrogen Atoms from the December 5, 2006 Solar Flare. In: Proceedings of the 31st International Cosmic Ray Conference. , Lodz, Poland. https://resolver.caltech.edu/CaltechAUTHORS:20150522-161459034
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Abstract
Although solar energetic particle (SEP) activity has been at a minimum for the last few years, significant particle enhancements due to corotating interaction regions (CIRs) have regularly appeared at 1 AU, providing an ideal opportunity to study CIR particles without SEP contamination. Observations of CIR time profiles from the two STEREO spacecraft commonly show delays that are often roughly as expected from the corotation time lag between the two spacecraft. However, in many cases different features seen at Ahead and Behind may suggest that transient disturbances in the solar wind alter connection to or transport from the shock, or that temporal changes occur in the CIR shock itself. We present CIR observations from STEREO and ACE at energies from ~2-10 MeV/nucleon and examine the evolution of CIR time profiles as a function of spacecraft separation in longitude, radius, and heliographic latitude.
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Additional Information: | Copyright University of Łódź. Department of High Energy Astrophysics, 2010 This work was supported by NASA at Caltech and JPL under NASA contract NAS5-03131. Work at MSFC was supported by the TEI Program of NASAs Office of Chief Engineer. We thank NOAA for GOES X-ray data. We appreciate discussions with Mike Kaiser, Sam Krucker, Bob Lin, Ron Murphy, and Gerry Share. Finally, we thank Eileen Chollet for her assistance with this paper. | ||||||||||||||||
Group: | Space Radiation Laboratory | ||||||||||||||||
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Record Number: | CaltechAUTHORS:20150522-161459034 | ||||||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150522-161459034 | ||||||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||
ID Code: | 57786 | ||||||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||||||
Deposited By: | Deborah Miles | ||||||||||||||||
Deposited On: | 01 Jun 2015 23:56 | ||||||||||||||||
Last Modified: | 09 Mar 2020 13:19 |
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