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.
@article{arxiv.1111.2711,
title = {Formation of the current sheet in a coronal streamer},
author = {Lucia Abbo and Ester Antonucci and Roberto Lionello and Zoran Mikić and Pete Riley},
journal= {arXiv preprint arXiv:1111.2711},
year = {2011}
}
Comments
6 pages, 3 figures, Proceeding of the "International Association of Geomagnetism and Aeronomy (IAGA) 2nd Symposium: Solar Wind - Space Environment Interaction", December 4th-8th, 2009, Cairo, Egypt