HR: 1340h
AN: SH13A-1133    [Abstracts]
TI: The Solar Active Region Differential Emission Measure from 1 to 20 MK
AU: * McTiernan, J M
EM: jimm@ssl.berkeley.edu
AF: Space Sciences Lab, University of California, 7 Gauss Way , Berkeley, CA 94720 United States
AB: In this work we determine the differential emission measure (DEM) for solar active regions during non-flaring times, using a combination of RHESSI and GOES12-SXI data. Approximately 3000 measurements of non-flare RHESSI spectra were obtained between January 2003 and September 2004. Most of these spectra were taken close enough to times of SXI images to allow for calculation of the DEM. Each DEM is calculated using the same process as used with YOHKOH data from solar flares as presented by McTiernan, Fisher and Li, (1999). We will use the data to compare with predictions of the nanoflare model of solar heating (Cargill and Klimchuk, 2004). We will also check for correlations between the high temperature emission measure and total X-ray brightness and also solar flare activity.
DE: 7509 Corona
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting