Relative brightness variability vs. averaged Doppler shift in the quiet Sun

Details Relative brightness variability vs. averaged Doppler shift in the quiet Sun Relative brightness variability vs. averaged Doppler shift in the quiet Sun

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.508..281b&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

Physics

Sun: Chromosphere, Sun: Corona, Sun: Transition Region, Sun: Uv Radiation

Scientific paper

We studied SUMER and CDS time series of spectra and images of quiet-Sun regions at disc centre. Ultraviolet emission lines sampling temperatures of the chromosphere, transition region and corona were recorded. We found a high correlation between average net Doppler shifts and relative brightness variabilities of the studied lines. We point to some basic ideas which could eventually model the variability-Doppler shift relationship.

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