Table D.1
Background count rate of the field of RX J1856.5-3754 as observed by XMM-Newton/EPIC-MOS2 in a similar time period of eROSITA’s coverage of CrA.
| eROSITA Coverage | XMM-Newton Coverage | 0.3–0.7 keV | 8–12 keV |
|---|---|---|---|
| 2020-Apr-10-2020-Apr-14 | 2020-Mar-31-2020-Apr-01 | 5.989 ± 0.045 | 2.244 ± 0.019 |
| 2020-Oct-13-2020-Oct-17 | 2020-Sep-15-2020-Sep-16 | 6.123 ± 0.048 | 2.286 ± 0.020 |
| 2021-Apr-08-2021-Apr-14 | 2021-Apr-01-2021-Apr-02 | 6.101 ± 0.046 | 2.270 ± 0.019 |
| 2021-Oct-12-2021-Oct-17 | 2021-Oct-11-2021-Oct-12 | 7.934 ± 0.062 | 2.976 ± 0.025 |
Notes. The count rates reported in the 0.3–0.7 keV band are calculated using the vignetting-corrected exposure time, while the 8–12 keV band count rate used the exposure time without vignetting correction, because the latter should be dominated by particles that did not go through the mirror module. They have units of counts s−1 deg−2. The 1 σ error bars are shown.
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