Analysis of EUV, UV, and H-alpha Emission from Two Very Different Prominences

Details Analysis of EUV, UV, and H-alpha Emission from Two Very Different Prominences Analysis of EUV, UV, and H-alpha Emission from Two Very Different Prominences

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsp43b..03k&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SP43B-03

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7549 Ultraviolet Emissions

Scientific paper

Analysis of EUV, UV, and H-alpha Emission from Two Very Different Prominences T. Kucera (NASA/GSFC), E. Landi (Artep Inc.) We analyze the properties of a pair of prominences observed the UV and EUV in April 2004. One was a generally quiet prominence which exhibited a period of activation. Another was a large "coronal cloud" type prominence. Both were observed in by SOHO/SUMER, TRACE, and in Hα by BBSO and MLSO. The quiet promince was also observed by the SOHO/CDS instrument. TRACE and Hα data provide 2D images on with time cadences on the order of 1 minute. The SUMER data was taken from a single slit location with a 90 second cadence and included a number of lines spanning the temperature range 80,000 to 1.6 million K. This observing program was designed to allow us to study prominence dynamics. CDS raster data was taken with a slower cadence, in lines formed at temperatures from 20,000 - 1 million K. We combine these different data sets to analyze the thermal properties, including differential emission measures (DEMs), of these very different prominences, and compare the results to those of prominences previously analyzed by ourselves and others. This work was partly funded through a NASA Heliophysics GI RTOP and NASA award NNH04AA12

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