Table 1.
Imaging parameters characterizing the ground truth, CLEAN, multiscale CLEAN, MEM_GE, uv_smooth_VSK, and u-CLEAN reconstructions for the three single-source configurations (see Fig. 2).
| Circle | Total flux | max | xmax | ymax | FWHMx | FWHMy |
|---|---|---|---|---|---|---|
| ground truth | 10000 | 9.81 | −1 | −1 | 30 | 30 |
| CLEAN | 11268 | 7.66 | −1 | −1 | 33 | 33 |
| multi-scale CLEAN | 10128 | 9.02 | −1 | −1 | 31 | 31 |
| MEM_GE | 10120 | 8.60 | −1 | −1 | 27 | 27 |
| uv_smooth_VSK | 10013 | 9.90 | −1 | 0 | 30 | 30 |
| u-CLEAN | 10245 | 10.21 | −1 | 0 | 28 | 28 |
| ellipse | ||||||
| ground truth | 10000 | 11.05 | −11 | 19 | 20 | 40 |
| CLEAN | 10977 | 7.46 | −10 | 19 | 37 | 27 |
| multi-scale CLEAN | 10060 | 10.03 | −10 | 19 | 32 | 25 |
| MEM_GE | 10047 | 9.54 | −10 | 19 | 28 | 19 |
| uv_smooth_VSK | 10347 | 11.73 | −10 | 20 | 32 | 22 |
| u-CLEAN | 10764 | 11.25 | −10 | 20 | 33 | 22 |
| loop | ||||||
| ground truth | 10000 | 6.43 | −5 | 3 | 50 | 30 |
| CLEAN | 11209 | 4.36 | −5 | 2 | 43 | 49 |
| multi-scale CLEAN | 10079 | 5.65 | −4 | 0 | 37 | 39 |
| MEM_GE | 10040 | 5.59 | −4 | 3 | 29 | 32 |
| uv_smooth_VSK | 10083 | 6.42 | −5 | 4 | 34 | 36 |
| u-CLEAN | 10310 | 7.33 | −8 | 1 | 28 | 31 |
Notes. The total flux is conceived in counts s−1 cm−2 keV−1, max is expressed in counts s−1 cm−2 keV−1 arcsec−2, and xmax, ymax, FWHMx, FWHMy are conceived in arcsec.
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