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Table 2.
eRASS extraction regions, exposure times, and ML count rates.
| eRASS | Source | Background | Exposure | ML count rate |
|---|---|---|---|---|
| radius (″) | annulus radii (″) | (s) | (ct s−1; 0.2−2.3 keV) | |
| 1 | 87.8 | 186.3, 1092.7 | 929 | 1.090 ± 0.052 |
| 2 | 40.2 | 95.7, 503.0 | 964 | 0.063 ± 0.012 |
| 3 | 36.6 | 88.2, 457.4 | 724 | 0.050 ± 0.013 |
| 4 | 75.0 | 162.7, 933.6 | 855 | 0.622 ± 0.040 |
| 5 | 40.3 | 95.8, 503.6 | 819 | 0.067 ± 0.014 |
Notes. Exposure refers to good time after screening. The ML count rate (Merloni et al. 2024) denotes the maximum likelihood count rate taking into account the time when the source was in the field of view and with corrections applied for vignetting effects.
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