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Table 1.

Observed and derived parameters during the first nonthermal peak for the flare and the high-coronal source.

Source type Parameter Entire flare High-coronal
Thermal temperature [MK] 17.5 23.5 ± 0.7
EM [cm−3] 4.6 × 1048 1.7 ± 0.2 × 1047
volume [cm3] 6 × 2025 6 × 2027
density [cm−3] 2 × 1011 5 × 109
GOES class M6 B6
thermal energy Eth [erg] 2 × 1029 3 × 1029

Non-thermal photon spectral index γ 4.9 ± 0.1 4.8 ± 0.1
F30 [photons s−1 cm−2 keV−1] 4.0 ± 0.3 0.16 ± 0.01
non-thermal thick-target energy above 25 keV Ethick [erg] 3 × 1029 1 × 1028
non-thermal thin target energy above 25 keV Ethin [erg] ≫2 × 1028

Notes. Values without error bars are order of magnitude estimates.

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