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STEREO and ACE observations of CIR particles

Leske, R. A. and Mewaldt, R. A. and Mason, G. M. and Cohen, C. M. S. and Cummings, A. C. and Davis, A. J. and Labrador, A. W. and Miyasaka, H. and Stone, E. C. and Wiedenbeck, M. E. and von Rosenvinge, T. T. (2008) STEREO and ACE observations of CIR particles. In: Particle Acceleration and Transport in the Heliosphere and Beyond— 7th Annual Astrophysics Conference. AIP Conference Proceedings. No.1039. American Institute of Physics , pp. 131-136. ISBN 9780735405660. https://resolver.caltech.edu/CaltechAUTHORS:20090507-132736204

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Abstract

In the present solar minimum, corotating interaction regions (CIRs) produce frequent particle enhancements at 1 AU as observed at STEREO and ACE. As the two STEREO spacecraft move apart, differences in CIR time profiles observed at each spacecraft are becoming large. The timing differences are often roughly similar to the corotation time lag between the two spacecraft, however many of the features seen at Ahead and Behind require more than just a time shift. Perhaps transient disturbances in the solar wind affect connection to or transport from the shock, or temporal changes occur in the CIR shock itself. Additional timing differences of >1 day result from the different heliographic latitudes of the two STEREO spacecraft


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.2982435DOIArticle
http://link.aip.org/link/?APCPCS/1039/131/1PublisherArticle
ORCID:
AuthorORCID
Leske, R. A.0000-0002-0156-2414
Mewaldt, R. A.0000-0003-2178-9111
Mason, G. M.0000-0003-2169-9618
Cohen, C. M. S.0000-0002-0978-8127
Cummings, A. C.0000-0002-3840-7696
Labrador, A. W.0000-0001-9178-5349
Miyasaka, H.0000-0002-8074-4186
Stone, E. C.0000-0002-2010-5462
Wiedenbeck, M. E.0000-0002-2825-3128
Additional Information:© 2008 American Institute of Physics. This work was supported by NASA grants NAS5-03131 and NAG5-12929. We thank STEREO/PLASTIC (NASA contract NAS5-00132) and MAG investigators for making their data publicly available, and the Wilcox Solar Observatory for the HCS data. PACS: 96.50.-e,96.50.Qx,96.50.Vg.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANAS5-03131
NASANAG5-12929
Subject Keywords:interplanetary physics; corotating streams; energetic particles; STEREO; ACE
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2008-05
Series Name:AIP Conference Proceedings
Issue or Number:1039
Record Number:CaltechAUTHORS:20090507-132736204
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20090507-132736204
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14181
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:11 May 2009 18:58
Last Modified:09 Mar 2020 13:19

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