Table 1.
eROSITA observation log of GJ 504.
| eRASS | Obs.Date | Offset | Src.Cnts | Det.ML | Rate |
|---|---|---|---|---|---|
| [arcsec] | [×103] | [cnt/s] | |||
| 1 | 2019/12/20−27 | 1.80 | 1.12 ± 0.034 | 5.9e3 | 7.14 ± 0.21 |
| 2 | 2020/06/21−27 | 2.74 | 0.96 ± 0.031 | 5.1e3 | 7.68 ± 0.25 |
| 3 | 2020/12/22−28 | 1.05 | 0.78 ± 0.028 | 4.0e3 | 6.30 ± 0.23 |
| 4 | 2021/06/24−30 | 1.11 | 0.72 ± 0.027 | 3.7e3 | 6.23 ± 0.24 |
| 5 | 2021/12/26−2022/01/01 | 0.99 | 0.84 ± 0.029 | 4.3e3 | 6.65 ± 0.23 |
Notes. eROSITA survey (col. 1); actual observational period of GJ 504 (col. 2); offset between corrected proper motion expected position and X-ray source (col. 3); net source counts and detection maximum likelihood (cols. 4 and 5); and count rate (col. 6). The energy band adopted for the extraction is 0.2 − 5.0 keV (see Sect. 3).
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