Formation of the current sheet in a coronal streamer

Details Formation of the current sheet in a coronal streamer Formation of the current sheet in a coronal streamer

2011-11-11

arxiv.org/abs/1111.2711v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, 3 figures, Proceeding of the "International Association of Geomagnetism and Aeronomy (IAGA) 2nd Symposium: Solar Wind

Scientific paper

10.1012/S120027852003

The present work is on the study of a coronal streamer observed in March 2008 at high spectral and spatial resolution by the Ultraviolet Coronagraph Spectrometer (UVCS) onboard SOHO. On the basis of a spectroscopic analysis of the O VI doublet, the solar wind plasma parameters are inferred in the extended corona. The analysis accounts for the coronal magnetic topology, extrapolated through a 3D magneto-hydrodynamic model. The results of the analysis show indications on the formation of the current sheet, one of the source regions of the slow coronal wind.

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