Statistics
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.1202c&link_type=abstract
American Astronomical Society, SPD meeting #42, #12.02; Bulletin of the American Astronomical Society, Vol. 43, 2011
Statistics
Scientific paper
We present the statistics of flares with simultaneous observations in both hard X-ray (HXR) and ultraviolet (UV/EUV) observations by RHESSI and SDO/AIA, respectively. The flares were chosen from the RHESSI flare list and range from GOES M class to GOES A class (though most are GOES B class). Identifying the flare region using RHESSI imaging, we compare the HXR (thermal) light curves and images with those observed by AIA in every available UV/EUV channels. Many events show complex morphologies with multiple flaring loops observed in AIA images though only a simple morphology is observed by RHESSI images. We find that at least 75% of events show significant UV/EUV flux at the same location as the RHESSI HXR source. The high temperature AIA channels (131 [[Unable to Display Character: Ǻ]], 91 [[Unable to Display Character: Ǻ]]) are well correlated with the RHESSI thermal HXRs (4-10 keV) though not the 193 [[Unable to Display Character: Ǻ]], another high temperature channel. We find little to no time lag between the different AIA channels. We further compare the temperature response as derived from the AIA images to that derived from RHESSI.
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