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| Titel |
Solar wind ion trends and signatures: STEREO PLASTIC observations approaching solar minimum |
| VerfasserIn |
A. B. Galvin, M. A. Popecki, K. D. C. Simunac, L. M. Kistler, L. Ellis, J. Barry, L. Berger, L. M. Blush, P. Bochsler, C. J. Farrugia, L. K. Jian, E. K. J. Kilpua, B. Klecker, M. Lee, Y. C.-M. Liu, J. L. Luhmann, E. Moebius, A. Opitz, C. T. Russell, B. Thompson, R. F. Wimmer-Schweingruber, P. Wurz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 27, no. 10 ; Nr. 27, no. 10 (2009-10-13), S.3909-3922 |
| Datensatznummer |
250016679
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| Publikation (Nr.) |
 copernicus.org/angeo-27-3909-2009.pdf |
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| Zusammenfassung |
| STEREO has now completed the first two years of its mission, moving from
close proximity to Earth in 2006/2007 to more than 50 degrees longitudinal
separation from Earth in 2009. During this time, several large-scale
structures have been observed in situ. Given the prevailing solar minimum
conditions, these structures have been predominantly coronal hole-associated
solar wind, slow solar wind, their interfaces, and the occasional transient
event. In this paper, we extend earlier solar wind composition studies into
the current solar minimum using high-resolution (1-h) sampling times for
the charge state analysis. We examine 2-year trends for iron charge states
and solar wind proton speeds, and present a case study of Carrington
Rotation 2064 (December 2007) which includes minor ion (He, Fe, O) kinetic
and Fe composition parameters in comparison with proton and magnetic field
signatures at large-scale structures observed during this interval. |
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