Properties of Coronal Hole/Streamer Boundaries and Adjacent Regions as Observed by Spartan 201 |
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| Authors: | M. P. Miralles L. Strachan L. D. Gardner P. L. Smith J. L. Kohl M. Guhathakurta R. R. Fisher |
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| Affiliation: | (1) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA;(2) NASA Goddard Space Flight Center, Code 682, Greenbelt, MD, 20771 |
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| Abstract: | The Spartan 201 flights from 1993 to 1995 provided us with observations in H I Lyman-α of several coronal hole/streamer boundaries and adjacent streamers during the declining phase of the current solar cycle: Analysis of the latitudinal dependence of the line intensities clearly shows that there is a boundary region at the coronal hole/streamer interface where the H I Lyman-α intensity reaches a minimum value. Similar results are also found in UVCS/SOHO observations. We also discuss differences in the coronal hole/streamer boundaries for different types of streamers and their changes over the three year period of Spartan 201 observations. This revised version was published online in June 2006 with corrections to the Cover Date. |
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