Table 1.
Spectral indices derived from electron flux spectra, count spectra, and regularized count spectra, in the case of several flaring events.
| Event | OSPEX | Electron flux spectral images | Count images | Regularized count images |
|---|---|---|---|---|
| SOL2021-05-08T18 | γ = 5.28 ± 0.18 | δ = 4.53 ± 0.07 | γ = 4.94 ± 0.24 | γ = 5.50 ± 0.04 |
| SOL2021-08-26T23 | γ = 5.65 ± 0.12 | δ = 4.59 ± 0.11 | γ = 5.27 ± 0.17 | γ = 5.57 ± 0.06 |
| SOL2022-01-20T05 | γ = 6.51 ± 0.26 | δ = 5.07 ± 0.03 | γ = 6.25 ± 0.14 | γ = 6.36 ± 0.01 |
| SOL2022-08-28T16 | γ = 6.74 ± 0.18 | δ = 4.97 ± 0.04 | γ = 6.88 ± 0.24 | γ = 6.81 ± 0.03 |
| SOL2022-09-29T14 | γ = 4.54 ± 0.05 | δ = 3.68 ± 0.01 | γ = 4.24 ± 0.11 | γ = 4.42 ± 0.01 |
Notes. First column: event date. Second column: photon power-law index γ obtained by fitting spatially integrated spectra with OSPEX. Third column: electron power-law index δ obtained by fitting spatially integrated electron flux spectral images. Fourth and fifth columns: photon power-law index γ obtained by fitting spatially integrated count images and spatially integrated regularized count images, respectively, assuming a unit detector response matrix. The uncertainties in Cols. 3, 4, and 5 are determined by repeating the computation for 10 random realizations of the input visibilities.
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