Abstracts > Abstract list by author > Zapiór Maciej

Monday 10
Session I-1.1 Prominence:fine structure, dynamics and seismology
Chairman: Jongchul Chae
› 18:15 - 18:30 (15min)
Non-LTE Modeling and Observations of Oscillating Prominences
Maciej Zapiór  1, *@  , Petr Heinzel  2@  , José Luis Ballester  1@  , Ramon Oliver  1@  , Pavel Kotrč  2@  
1 : Universitat de les Illes Balears  (UIB)  -  Website
Crta Valldemossa, km 7,5 Palma de Mallorca Illes Balears -  Spain
2 : Astronomical Institute, Academy of Sciences of the Czech Republic  -  Website
Fricova 298 251 65 Ondrejov -  Czech Republic
* : Corresponding author

We model H-alpha and H-beta spectral lines in the presence of prominence oscillations. Since MHD waves cause oscillatory fluctuations of the plasma parameters (velocity, temperature, pressure, density), which are different at different depths, the resulting line profiles consist of particular contributions from a range of optical depths. We analyze temporal behavior of the line profiles, namely the Doppler shift, maximum intensity, and FWHM. Our simulations were performed for the fundamental and first harmonic slow and fast modes. The synthetic spectra can be compared with the observed ones collected during the joint Polish-Czech observational campaign devoted to a simultaneous detection of prominence oscillations from two distant sites.

 


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