The Lyman-alpha Line in Active and Eruptive Solar Prominences

Details The Lyman-alpha Line in Active and Eruptive Solar Prominences The Lyman-alpha Line in Active and Eruptive Solar Prominences

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...12.3.17l&link_type=abstract

"12th European Solar Physics Meeting, Freiburg, Germany, held September, 8-12, 2008. Online at http://espm.kis.uni-freiburg.de/,

Physics

Scientific paper

We investigate the effects of radial motions on the Ly-alpha emission in moving prominences under various temperature and pressure conditions and for various prominence masses. The ability to compute the Ly-alpha line intensity in active and erupting prominences with our non-LTE radiative transfer code is especially relevant to VAULT and to the LYOT instrument on SMESE. In the case of erupting prominences, high-cadence imaging as anticipated from LYOT/SMESE, will allow us to observe the dimming of the line as the prominence expands in the radial direction. In conjunction with our non-LTE radiative transfer code, the diagnostic of the thermodynamical plasma parameters and the velocity field can be done. This should provide new constraints for models of filament and prominence eruptions.

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