Comparison of interplanetary signatures of streamers and pseudostreamers

Crooker, N. U., McPherron, R. L. and Owens, M. J. ORCID: https://orcid.org/0000-0003-2061-2453 (2014) Comparison of interplanetary signatures of streamers and pseudostreamers. Journal of Geophysical Research: Space Physics, 119 (6). pp. 4157-4163. ISSN 2169-9402 doi: 10.1002/2014JA020079

Abstract/Summary

If the source of the slow solar wind is a web comprising pseudostreamer belts connected to the streamer belt, then one expects the properties of interplanetary pseudostreamer flows to be similar to those of streamer flows. That expectation is tested with data from the slow wind preceding stream interfaces in stream interaction regions at 1 AU, where the interfaces separate what was originally slow and fast wind. Pseudostreamer cases were separated from streamer cases with the aid of the streamer identification tool developed by Owens et al. (2013), and superposed epoch analysis was performed to compare the patterns of a number of plasma and composition parameters. The results reveal that pseudostreamer flows have all of the slow-wind characteristics of streamer flows except that they are slightly less pronounced than streamer characteristics when compared to fast wind. The results are consistent with the concept that the solar wind displays a continuum of dynamic states rather than only slow and fast states.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/38425
Item Type	Article
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Uncontrolled Keywords	slow solar wind
Publisher	American Geophysical Union
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