Travelling of high frequency oscillations in the solar chromosphere

Details Travelling of high frequency oscillations in the solar chromosphere Travelling of high frequency oscillations in the solar chromosphere

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...8e..45a&link_type=abstract

Solar and Stellar Activity Cycles, 26th meeting of the IAU, Joint Discussion 8, 17-18 August 2006, Prague, Czech Republic, JD08,

Computer Science

Scientific paper

It is thought that high frequency oscillations are responsible for heating of the chromosphere. The data used for this work were obtained with the Vacuum Tower Telescope, on Tenerife, Spain in neutral spectral line Fe I at 543.45nm using 2D spectroscopy. The two heights were observed, 200km and 600km. Observed oscillations travel with various velocities between observed heights. The minimum observed velocity is 3km/s, while maximum velocity could not be resolved with the used time resolution. Also possible connection with the granulation is presented. The travelling of the oscillations reveals complexity of the chromosphere.

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