Table 4.

Best-fitting parameters of the SW spectra.

ModelParameter (unit)SW Model1SW Model2
PHABSN  H (1021 cm−2)2.9 ± 0.44.5 ± 0.2
VAPECkT  e (keV)|$0.298^{+0.008}_{-0.007}$|0.186|$^{+0.005}_{-0.004}$|
/VRNEIkT  init (keV)3.0 (fixed)
Z  Ne (solar)|$2.0^{+0.4}_{-0.3}$|2.9 ± 0.3
Z  Mg (solar)|$1.8^{+0.5}_{-0.4}$|1.0 ± 0.2
Z  Si, S (solar)<2.60.4 ± 0.2
Z  Fe, Ni (solar)|$0.43^{+0.07}_{-0.06}$||$2.1^{+0.3}_{-0.2}$|
Z  Others (solar)1.0 (fixed)1.0 (fixed)
N* (1012 cm−5)|$0.6^{+0.2}_{-0.1}$||$3.0^{+0.5}_{-0.4}$|
n  e  t (1011 s cm−3)9.3 ± 0.4
PLΓ3.5 ± 0.12.2 ± 0.3
Surface brightness|$1.6^{+0.2}_{-0.1}$||$1.7^{+0.3}_{-0.2}$|
χ2/d.o.f.572.58/377443.43/376
ModelParameter (unit)SW Model1SW Model2
PHABSN  H (1021 cm−2)2.9 ± 0.44.5 ± 0.2
VAPECkT  e (keV)|$0.298^{+0.008}_{-0.007}$|0.186|$^{+0.005}_{-0.004}$|
/VRNEIkT  init (keV)3.0 (fixed)
Z  Ne (solar)|$2.0^{+0.4}_{-0.3}$|2.9 ± 0.3
Z  Mg (solar)|$1.8^{+0.5}_{-0.4}$|1.0 ± 0.2
Z  Si, S (solar)<2.60.4 ± 0.2
Z  Fe, Ni (solar)|$0.43^{+0.07}_{-0.06}$||$2.1^{+0.3}_{-0.2}$|
Z  Others (solar)1.0 (fixed)1.0 (fixed)
N* (1012 cm−5)|$0.6^{+0.2}_{-0.1}$||$3.0^{+0.5}_{-0.4}$|
n  e  t (1011 s cm−3)9.3 ± 0.4
PLΓ3.5 ± 0.12.2 ± 0.3
Surface brightness|$1.6^{+0.2}_{-0.1}$||$1.7^{+0.3}_{-0.2}$|
χ2/d.o.f.572.58/377443.43/376

*Normalization of the APEC component is |$\frac{1}{4\pi D^2} \int n_{\rm e}n_\mathrm{H}dV$|⁠, where D is the distance to the source, ne and nH are the electron and hydrogen densities, respectively, and V is the X-ray emitting volume.

Units of 10−15 erg cm−2 s−1 arcmin−2 in the 2.0–10.0 keV band.

Table 4.

Best-fitting parameters of the SW spectra.

ModelParameter (unit)SW Model1SW Model2
PHABSN  H (1021 cm−2)2.9 ± 0.44.5 ± 0.2
VAPECkT  e (keV)|$0.298^{+0.008}_{-0.007}$|0.186|$^{+0.005}_{-0.004}$|
/VRNEIkT  init (keV)3.0 (fixed)
Z  Ne (solar)|$2.0^{+0.4}_{-0.3}$|2.9 ± 0.3
Z  Mg (solar)|$1.8^{+0.5}_{-0.4}$|1.0 ± 0.2
Z  Si, S (solar)<2.60.4 ± 0.2
Z  Fe, Ni (solar)|$0.43^{+0.07}_{-0.06}$||$2.1^{+0.3}_{-0.2}$|
Z  Others (solar)1.0 (fixed)1.0 (fixed)
N* (1012 cm−5)|$0.6^{+0.2}_{-0.1}$||$3.0^{+0.5}_{-0.4}$|
n  e  t (1011 s cm−3)9.3 ± 0.4
PLΓ3.5 ± 0.12.2 ± 0.3
Surface brightness|$1.6^{+0.2}_{-0.1}$||$1.7^{+0.3}_{-0.2}$|
χ2/d.o.f.572.58/377443.43/376
ModelParameter (unit)SW Model1SW Model2
PHABSN  H (1021 cm−2)2.9 ± 0.44.5 ± 0.2
VAPECkT  e (keV)|$0.298^{+0.008}_{-0.007}$|0.186|$^{+0.005}_{-0.004}$|
/VRNEIkT  init (keV)3.0 (fixed)
Z  Ne (solar)|$2.0^{+0.4}_{-0.3}$|2.9 ± 0.3
Z  Mg (solar)|$1.8^{+0.5}_{-0.4}$|1.0 ± 0.2
Z  Si, S (solar)<2.60.4 ± 0.2
Z  Fe, Ni (solar)|$0.43^{+0.07}_{-0.06}$||$2.1^{+0.3}_{-0.2}$|
Z  Others (solar)1.0 (fixed)1.0 (fixed)
N* (1012 cm−5)|$0.6^{+0.2}_{-0.1}$||$3.0^{+0.5}_{-0.4}$|
n  e  t (1011 s cm−3)9.3 ± 0.4
PLΓ3.5 ± 0.12.2 ± 0.3
Surface brightness|$1.6^{+0.2}_{-0.1}$||$1.7^{+0.3}_{-0.2}$|
χ2/d.o.f.572.58/377443.43/376

*Normalization of the APEC component is |$\frac{1}{4\pi D^2} \int n_{\rm e}n_\mathrm{H}dV$|⁠, where D is the distance to the source, ne and nH are the electron and hydrogen densities, respectively, and V is the X-ray emitting volume.

Units of 10−15 erg cm−2 s−1 arcmin−2 in the 2.0–10.0 keV band.

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