Investigation of Lyman <alpha> Emission in a Solar Flare

Details Investigation of Lyman <alpha> Emission in a Solar Flare Investigation of Lyman <alpha> Emission in a Solar Flare

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...12.2.64r&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

The TRACE satellite observed a small number of solar flares in the Lyman alpha channel, which have until now not been analysed. We look at a well-observed flare on 8th September 1999 to investigate different topics. We carry out a study of the spatial and temporal evolution of the flare and associated filament eruption in Lyman alpha, hard X-rays and soft X-rays, and examine the flare energetics using the hard X-rays (in the collisional thick target approximation) to estimate the energy flux carried by electrons, and TRACE Lyman alpha/1600 Å channels to estimate the temperature and radiative power in UV. We will use these observations to anticipate what can be observed in the future by the proposed SMESE satellite mission, and to compare with predictions of semi-empirical and theoretical models of the flare chromosphere.

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