A&A 403, 287-295 (2003)
Explosive events and transition region blinkers: Time variability of non-Gaussian quiet Sun EUV spectraH. Peter and A. Brkovic
Kiepenheuer-Institut für Sonnenphysik, 79104 Freiburg, Germany
(Received 16 December 2002 / Accepted 21 February 2003)
The transition region (TR) from the chromosphere to the corona of the Sun and solar type stars is a very dynamic regime. On the Sun at least two major observational classes of transients can be seen: explosive events and blinkers. Besides these transients there is also a more steady spectral component in transition region lines that accounts for the deviation of the line profile from a (single) Gaussian shape, i.e. for enhanced wings that are well described by a second broad Gaussian, a tail component. The present paper discusses the spectral properties of these features in order to learn more about a possible connection between blinkers, explosive events and tail components.
Key words: Sun: chromosphere -- Sun: corona -- Sun: transition region -- Sun: UV radiation
Offprint request: H. Peter, email@example.com
© ESO 2003