Table 1.
Results of spectral fits to the X-ray spectra of the persistent emission.
| Instrument | NH/1020(a) | kT | Γ | C/PG-stat | χ2 | d.o.f. | Fobs/10−12(b) | L/1036(c) |  (d) |
|---|---|---|---|---|---|---|---|---|---|
| (cm−2) | (eV) | (erg cm−2 s−1) | (erg s−1) | (km) | |||||
| EPIC | 11.3±1.9 | 142
|
1.42±0.03 | – | 1404 | 1405 | 5.83±0.12 | 2.63±0.07 | 74
|
| NICER | 11.7
|
129
|
1.41
|
880 | 1416 | 764 | 5.93
|
2.61
|
80
|
| eROSITA | 11.5 fix | 44
|
1.81
|
89.3 | 94.5 | 132 | 4.06
|
1.75
|
4260
|
| Swift/XRT | 11.5 fix | – | 1.64
|
86.8 | 106.6 | 120 | 5.2
|
2.3
|
– |
Notes. Best-fit parameters for an absorbed two-component model consisting of disk-blackbody and power-law emission. Errors indicate 90% confidence ranges.
For the photo-electric absorption by gas along the line of sight, we used tbabs in XSPEC with interstellar abundances following Wilms et al. (2000) and atomic cross sections from Verner et al. (1996).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.