Table 3.
Fitting results of the relativistically smeared reflection models for the spectra of PG 1448+273.
| Observation time | 2003-02-08 | 2003-02-08 | 2017-01-24 | 2017-01-24 | |||
|---|---|---|---|---|---|---|---|
| Observation ID | 0152660101 | 0152660101 | 0781430101 | 0781430101 | |||
| high state | low state | high state | low state | ||||
| Model | Model component | Model parameter | Unit | ||||
| LineE | keV | – | – |
 |
 |
||
| gabs | Sigma | keV | – | – |
 |
 |
|
| Strength | – | – |
 |
 |
|||
| Γ1 |
 |
 |
 |
 |
|||
| a | 0.998 ± 0.01 | ||||||
| θ | deg | 64.0 ± 2.6 | |||||
| TBabs*gabs*relxill | relxill | Γ |
 |
 |
 |
 |
|
| log10ξ |
 |
 |
 |
 |
|||
| AFe | 3.55 ± 0.25 | ||||||
| Rfrac |
 |
 |
 |
 |
|||
| norm | 10−6 |
 |
 |
 |
 |
||
| Fit quality | χ2/d.o.f. | 1426.32/1188 | |||||
| LineE | keV | – | – |
 |
 |
||
| gabs | Sigma | keV | – | – |
 |
 |
|
| Strength | – | – |
 |
 |
|||
| h | GM/c2 |
 |
 |
 |
 |
||
| a | 0.998 ± 0.371 | ||||||
| θ | deg | 63.8 ± 1.7 | |||||
| TBabs*gabs*relxilllp | relxilllp | Γ |
 |
 |
 |
 |
|
| log10ξ |
 |
 |
 |
 |
|||
| AFe | 2.50 ± 0.57 | ||||||
| Rfrac |
 |
 |
 |
 |
|||
| norm | 10−6 |
 |
 |
 |
 |
||
| Fit quality | χ2/d.o.f. | 1597.54/1188 | |||||
| LineE | keV | – | – |
 |
 |
||
| gabs | Sigma | keV | – | – |
 |
< 0.19 | |
| Strength | – | – |
 |
> 0.37 | |||
| Γ1 |
 |
 |
 |
 |
|||
| a | 0.998 ± 0.01 | ||||||
| θ | deg | 63.5 ± 3.2 | |||||
| TBabs*gabs*relxillD | relxillD | Γ |
 |
 |
 |
 |
|
| log10ξ |
 |
 |
 |
 |
|||
| AFe | 2.22 ± 0.61 | ||||||
| log10N | cm−3 | 17.8 ± 0.10 | |||||
| Rfrac | < 4.1 |
 |
 |
 |
|||
| norm | 10−6 |
 |
 |
 |
 |
||
| Fit quality | χ2/d.o.f. | 1300.90/1187 | |||||
Notes. For the uncertainties of the free parameters that are tied between the different spectral fittings, their 1σ approximate uncertainties obtained directly from the XSPEC fitting are reported. This is because the model is extremely complex during joint fitting, and using the error command to calculate their uncertainties consumes a huge amount of CPU computing time. For the untied free parameters, we fix the tied free parameters and use the error command to calculate their 1σ uncertainties. For the parameters that cannot be limited well, the upper or lower limit of 1σ is given.
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