High-frequency waves (5 mHz to 20mHz) have previously been suggested as a source of energy accounting partial heating of the quiet solar atmosphere. The dynamics of previously detected high-frequency waves is analysed here. Image sequences are taken using the German Vacuum Tower Telescope (VTT), Observatorio del Teide, Izana, Tenerife, with a Fabry-Perot spectrometer. The data were speckle reduced and analyzed with wavelets. Wavelet phase-difference analysis is performed to determine whether the waves propagate. We observe the propagation of waves in the frequency range 10mHz to 13mHz. We also observe propagation of low-frequency waves in the ranges where they are thought to be evanescent in regions where magnetic structures are present.
@article{arxiv.0810.2237,
title = {Propagation of High Frequency Waves in the Quiet Solar Atmosphere},
author = {Aleksandra Andić},
journal= {arXiv preprint arXiv:0810.2237},
year = {2009}
}
Comments
14 pages, 8 figures, accepted for publication in SAJ