04/30/02
Baudin Frederic Institut d'Astrophysique Spatiale
Bat. 121, Campus d'Orsay SF2A-
91405 Orsay Cedex, France
Presentation 1 : Poster
Comparison of the oscillations of network and internetwork versus height in the solar atmosphere (PNST)
F. Baudin, K. Bocchialini and S. Koutchmy
The oscillations of the solar atmosphere are studied based on several time series obtained in different lines (Na D1, He D3, Mg b2, Halpha, Hbeta, FeI, CaI) with the telescope Themis and its spectrograph MTR. The behaviour of the oscillations is compared in the network and internetwork regions and also at different height in the solar atmosphere. We discuss the possibility to identify the occurence of propagating waves taking into account the expected formation heights of the measured lines.