Acceleration Profile of the Slow Solar Wind as Inferred from Gradual Mass Ejections Observed by LASCO |
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Authors: | Nandita Srivastava Rainer Schwenn Bernd Inhester Guillermo Stenborg Borut Podlipnik |
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Institution: | (1) Max-Planck-Institut für Aeronomie, 37191 Katlenburg-Lindau, Germany |
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Abstract: | The slow solar wind (< 400 km s-1) appears to initiate from the regions in the corona where magnetic fields are closed, or from the interface between streamers
and other coronal regions. The nature of the acceleration of slow solar wind is not yet well known. LASCO observations of
gradually evolving mass ejections offer us a good opportunity to study the speed and acceleration profiles of the slow solar
wind from a distance of 1.1 up to 30 R⊙. We present speed and acceleration profiles of slow solar wind, derived on the basis of measurements of mass flows in several
cases of gradual mass ejections and present them in perspective of earlier work.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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