Table 1
Values of free spectral parameters obtained for looptop source and for first and second footpoints.
| First | Second | ||
| Looptop | footpoint | footpoint | |
|
|
|||
| EM (× 1048 cm-3) | 2.1 ± 0.5 | 0.14 ± 0.08 | 0.08 ± 0.07 |
|
|
|||
| T (keV) | 2.1 ± 0.1 | 2.5 ± 0.3 | 2.5 ± 0.4 |
| T (× 106 K) | 24 ± 1.2 | 29 ± 3.5 | 29 ± 4.6 |
|
|
|||
 keV |
|||
| (× 1055 e− cm-2 s-1) | 0.46 ± 0.08 | ||
|
|
|||
| Ṅ (× 1035 e− s-1) | 0.12 ± 0.03 | 0.06 ± 0.02 | |
|
|
|||
| δ | 5.2 ± 0.4 | 4.4 ± 0.2 | 4.2 ± 0.2 |
Notes. The parameters EM and T are the emission measure and temperature (thermal component). The value 
is the normalization factor derived for the looptop source in the thin target approximation, Ṅ is the electron rate above 25 keV derived for the footpoints in the thick target approximation, and δ is the electron spectral index derived in both thin and thick target approximations. The non-thermal parameters refer to the electron distribution directly and not to the photon spectrum.
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