UNIVERSITY OF CAMBRIDGE
Department of Applied Mathematics
and Theoretical Physics
Solar active regions: the 1 MK loops
Giulio Del Zanna
1 Introduction
1.1 Hot topic
1.2 The TRACE loops
1.3 The Schmelz loop
2 Simultaneous TRACE/CDS off-limb observations
2.1 Some preliminary conclusions
2.2 Yohkoh SXT vs. CDS
2.3 A closer look at a loop leg
2.4 Spectra of the loop and background
2.5 Temperatures of region B
2.6 Temperatures of loop regions and background
3 Forward modelling
4 TRACE filter ratio method
4.1 TRACE temperature measurements along the loop
5 On-disc: the footpoints
5.1 Can we trust Skylab results on FIP-effects ?
6 On-disc observations
6.1 Loop A
6.2 Fan of loops B,C
6.3 Thin loop D
6.4 Densities
7 Conclusions - 1
8 Conclusions - 2
9 Conclusions - 3
References