A search for turbulent wave heating and acceleration signatures with SOHO/SUMER observations : Measurements of the widths of off-limb Iron lines

TitreA search for turbulent wave heating and acceleration signatures with SOHO/SUMER observations : Measurements of the widths of off-limb Iron lines
Type de publicationConference Paper
Year of Publication2003
AuteursDolla, L., Lemaire P., Solomon J., and Vial J.-C.
ÉditeurVelli, M., Bruno R., Malara F., and Bucci B.
Conference NameSolar Wind Ten
Date PublishedSep
Résumé

The widths of coronal ions lines may contain important information about the energetics of the solar wind and corona. We present a method to measure these widths, taking into account the problems of instrumental stray light inherent to SoHO/SUMER. The Iron lines are interesting to set an upper limit on the ``unresolved'' velocity, that may be a signature of turbulent or wave motion in the corona.

DOI10.1063/1.1618611