Table 1.
Best-fit parameters of the phase-averaged broadband spectrum of EXO 2030+375 as observed by Insight-HXMT at the maximum of the outburst using the model const×tbabs(gauss+bbodyrad+gauss+cutoffpl) in the 2−50 keV energy band.
| Parameter | Value |
|---|---|
| CLE (fixed) | 1 |
| CME | 0.929 ± 0.006 |
| CHE | 0.882 ± 0.011 |
| NH [1022 cm−2] | 2.32 ± 0.13 |
| Γ | 0.942 ± 0.025 |
| NormΓ | 0.565 ± 0.002 |
| kTbb [keV] | 0.74 ± 0.03 |
| Normbb | 335.4 ± 64.4 |
| Ecut [keV] | 18.3 ± 0.5 |
| EKα [keV] | 6.69 ± 0.02 |
| σKα [keV] | 0.20 ± 0.04 |
| NormKα | 0.005 ± 0.001 |
| Eline [keV] | 5.71 ± 0.09 |
| σline [keV] | 0.62 ± 0.12 |
| Normline | 0.012 ± 0.002 |
| Flux0.01 − 150 keV | 2.239 ± 0.024 |
| χ2/d.o.f. | 938.85/1250 |
Notes. Normalization of the power law in units of photon cm−2 s−1 keV−1 at 1 keV. Unabsorbed flux (in units of 10−8 erg cm−2 s−1) calculated for the entire model, obtained using the cflux command from XSPEC as resulting from the HXMT data. Uncertainties are given for a 68% confidence level.
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