Table 2
X-ray spectral models applied to the hard sample.
| Name | Energy range | Description |
|---|---|---|
| (keV) | ||
| m0 | 0.2–8 | Single-temperature APEC model with redshift= 0, free kT |
| m1 | 0.2–8 | Single power law, free Γ, NH |
| m2 | 0.2–8 | Double power law, free Γs, NH |
| m3 | 0.2–8 | Power law plus blackbody, free Γ, kT, NH |
| m4 | 0.2–8 | Same as ml but fixed Γ = 1.8 |
| m5 | 2.3–6 | Same as m1 but in a narrower band |
Notes. In ml, m2, and m3, a log-uniform prior is adopted for NH in the range 4 × 1019 ~ 4 × 1024 cm−2, and a Gaussian prior centered at 1.8 with σ = 0.5 is adopted for Γ in the range –2 ~ 6. The appropriate Galactic absorption is applied to all models. More details including other parameter prior ranges are described in Liu et al. (2022b).
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.