Other
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsh52a0465c&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SH52A-0465
Other
7519 Flares, 7549 Ultraviolet Emissions, 7554 X Rays, Gamma Rays, And Neutrinos
Scientific paper
The X1.5 flare of 21 April 2002 was observed simultaneously by RHESSI and TRACE, and thus provides a great opportunity to correlate RHESSI findings with independent observations from another instrument. We begin by analyzing the thermal and non-thermal parts of the flare spectrum observed by RHESSI. We then use the temperature and volume emission measure obtained from fitting to predict the TRACE instrument response. We correlate these predictions with the observed TRACE flux at the flare site. Gallagher et al. (2002) state that TRACE showed EUV (195 Å) brightening some 4 minutes after RHESSI, but preliminary results indicate a small initial brightening in the 195 Å passband around 00:40 UT, at the same time as RHESSI, with the primary flux increase occurring around 00:44 UT. This roughly matches predictions of TRACE response based on RHESSI spectral data.
Caspi Amir
Krucker Sa"m
Lin Robert P.
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