Using SST and TRACE Observations to Test Spicule Models

Details Using SST and TRACE Observations to Test Spicule Models Using SST and TRACE Observations to Test Spicule Models

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsp43b..02j&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SP43B-02

Statistics

7507 Chromosphere, 7549 Ultraviolet Emissions

Scientific paper

Spicules are jets of plasma that rise out of the solar photosphere at between 10 and 150 km/s to a maximum height of about 10,000 km. These jets, which typically live between five and fifteen minutes, make up the chromosphere and contribute to the heating of the lower solar atmosphere. Using Interactive Data Language (IDL) for image alignment and the processing program ImageJ, we were able to determine spicule statistics from observations taken at the solar limb with the Swedish 1-m Solar Telescope (SST) in July 2006. In addition, Dopplergram movies allowed for a more complete understanding of spicule formation, motions, and evolution. This understanding was further enhanced by comparing simultaneous SST and Transition Region and Coronal Explorer (TRACE) images, which allowed us to link corresponding spicule-related events in different layers of the solar atmospheric. We consider our results in terms of recent spicule models. We thank Mats Lofdahl of the Royal Swedish Academy of Sciences for his work on Multi-Object Multi-Frame Blind Deconvolution of the SST data. Obtaining the data was supported in part by NASA grant NNG04GK44G and the current reduction work is supported in part by NASA grant NNM07AA01G from NASA's Marshall Space Flight Center.

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