Spectroscopic diagnostics of CME material

Details Spectroscopic diagnostics of CME material Spectroscopic diagnostics of CME material

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.508..421r&link_type=abstract

In: Proceedings of the SOHO 11 Symposium on From Solar Min to Max: Half a Solar Cycle with SOHO, 11-15 March 2002, Davos, Switze

Computer Science

14

Solar Corona, Coronal Mass Ejections, Spectroscopy, Uv

Scientific paper

SUMER, CDS and UVCS provide unique spectroscopic diagnostics of CME material through both Doppler shifts and line intensities. The Doppler shift information complements imaging data from LASCO and EIT, providing a probe of the structure of the expanding plasma along the line-of-sight. The line intensities provide unique information about the density, temperature and ionization state of the expanding plasma. Both very high and very low ions have been detected, H I to [Fe XIX]. The combiantion of temperatue, density and ionization state constrains the thermal history of the CME plasma.

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