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Table 2.
Spectral parameters and 1σ uncertainty ranges of XMM-Newton EPIC spectra for the circular region with r = 10 kpc centered at the position of NGC 5718.
| Model 1: phabs × apec | |
|---|---|
| kT (keV) | 1.32 ± 0.02 |
| Z (Z⊙) | 1 (fixed) |
| norm (10−5) | 7.67 |
| C/ν | 747.79/189 |
| Model 2: phabs × (apec + powerlaw) | |
| kT (keV) | 0.98 ± 0.03 |
| Z (Z⊙) | 1 (fixed) |
| norm (10−5) | 2.38 |
| Γ | 1.81 |
| κ (10−5) | 2.28 |
| C/ν | 239.80/187 |
| Model 3: phabs × (apec + apec + powerlaw) | |
| kT (keV) | 0.84 |
| Z (Z⊙) | 1 (fixed) |
| norm (10−5) | 1.64 |
| Γ | 1.62 |
| κ (10−5) | 0.88 |
| kT2 (keV) | 2.37 |
| Z2 (Z⊙) | 1 (fixed) |
| norm (10−5) | 5.39 |
| C/ν | 204.59/185 |
Notes.apec normalization (norm) is given in 
where powerlaw normalization (κ) is photons keV−1 cm−2 s−1 at 1 keV.
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