Table 1. Open in new tab Results of SXS...

Model parameter	Fe xxv fit	S xv fit
N 132 D CIE plasma (vapec)
kT (keV)	……………………0.7……………………
Z_Si (solar)	……………………0.6……………………
Z_S (solar)	……………………0.9……………………
Z_Fe (solar)	……………………0.4……………………
v_helio (km s⁻¹)	……………………0……………………	210 $_{- 380}^{+ 370}$	520 $_{- 620}^{+ 770}$
σ (km s⁻¹)	……………………0……………………	0	520 $_{- 340}^{+ 780}$
Flux, 2–10 keV^‡	……………………8.8……………………	5.6 $_{- 1.9}^{+ 2.9}$	5.5 $_{- 1.8}^{+ 3.1}$
Flux, fitting band^‡	……………………0.006……………………	1.3 $_{- 0.2}^{+ 0.4}$	1.3 $_{- 0.2}^{+ 0.4}$
N 132 D NEI plasma (vrnei)
kT (keV)	……………………1.5……………………
kT_init (keV)	……………………80……………………
n_et (10¹² s cm⁻³)	……………………0.9……………………
Z_Si (solar)	……………………0.4……………………
Z_S (solar)	……………………0.4……………………
Z_Fe (solar)	……………………0.5……………………
v_helio (km s⁻¹)	1440 $_{- 1000}^{+ 100}$	1140 $_{- 810}^{+ 640}$	1440	1140
σ (km s⁻¹)	0	510 $_{- 330}^{+ 1060}$	0	510
Flux, 2–10 keV^‡	9.5 $_{- 3.0}^{+ 4.5}$	9.7 $_{- 3.2}^{+ 4.2}$	6.1	6.2
Flux, fitting band^‡	0.48 $_{- 0.16}^{+ 0.25}$	0.49 $_{- 0.16}^{+ 0.24}$	0.34	0.34
CXB power law
Γ	……………………1.54……………………
Flux, 2–10 keV^‡	……………………0.040……………………
Flux, fitting band^‡	……………………0.0016……………………	……………………0.0006……………………
Spectral fitting band	……………………6.45–6.80 keV……………………	……………………2.40–2.48 keV……………………
C-stat $/$ d.o.f.	107.9 $/$ 696	106.5 $/$ 695	61.0 $/$ 157	59.1 $/$ 156
Goodness-of-fit (KS)^§	24%	20%	62%	31%
Goodness-of-fit (CvM)^§	35%	21%	62%	46%

Model parameter

Fe xxv fit

S xv fit

No broadening

With broadening^†

No broadening

With broadening^†

N 132 D CIE plasma (vapec)

kT (keV)

……………………0.7……………………

Z_Si (solar)

……………………0.6……………………

Z_S (solar)

……………………0.9……………………

Z_Fe (solar)

……………………0.4……………………

v_helio (km s⁻¹)

……………………0……………………

210

_{- 380}^{+ 370}

520

_{- 620}^{+ 770}

σ (km s⁻¹)

……………………0……………………

520

_{- 340}^{+ 780}

Flux, 2–10 keV^‡

……………………8.8……………………

5.6

_{- 1.9}^{+ 2.9}

5.5

_{- 1.8}^{+ 3.1}

Flux, fitting band^‡

……………………0.006……………………

1.3

_{- 0.2}^{+ 0.4}

1.3

_{- 0.2}^{+ 0.4}

N 132 D NEI plasma (vrnei)

kT (keV)

……………………1.5……………………

kT_init (keV)

……………………80……………………

n_et (10¹² s cm⁻³)

……………………0.9……………………

Z_Si (solar)

……………………0.4……………………

Z_S (solar)

……………………0.4……………………

Z_Fe (solar)

……………………0.5……………………

v_helio (km s⁻¹)

1440

_{- 1000}^{+ 100}

1140

_{- 810}^{+ 640}

1440

1140

σ (km s⁻¹)

510

_{- 330}^{+ 1060}

510

Flux, 2–10 keV^‡

9.5

_{- 3.0}^{+ 4.5}

9.7

_{- 3.2}^{+ 4.2}

6.1

6.2

Flux, fitting band^‡

0.48

_{- 0.16}^{+ 0.25}

0.49

_{- 0.16}^{+ 0.24}

0.34

CXB power law

……………………1.54……………………

Flux, 2–10 keV^‡

……………………0.040……………………

Flux, fitting band^‡

……………………0.0016……………………

……………………0.0006……………………

Spectral fitting band

……………………6.45–6.80 keV……………………

……………………2.40–2.48 keV……………………

C-stat

/

d.o.f.

107.9

/

696

106.5

/

695

61.0

/

157

59.1

/

156

Goodness-of-fit (KS)^§

24%

20%

62%

31%

Goodness-of-fit (CvM)^§

35%

21%

62%

46%

Model parameter	Fe xxv fit	S xv fit
N 132 D CIE plasma (vapec)
kT (keV)	……………………0.7……………………
Z_Si (solar)	……………………0.6……………………
Z_S (solar)	……………………0.9……………………
Z_Fe (solar)	……………………0.4……………………
v_helio (km s⁻¹)	……………………0……………………	210 $_{- 380}^{+ 370}$	520 $_{- 620}^{+ 770}$
σ (km s⁻¹)	……………………0……………………	0	520 $_{- 340}^{+ 780}$
Flux, 2–10 keV^‡	……………………8.8……………………	5.6 $_{- 1.9}^{+ 2.9}$	5.5 $_{- 1.8}^{+ 3.1}$
Flux, fitting band^‡	……………………0.006……………………	1.3 $_{- 0.2}^{+ 0.4}$	1.3 $_{- 0.2}^{+ 0.4}$
N 132 D NEI plasma (vrnei)
kT (keV)	……………………1.5……………………
kT_init (keV)	……………………80……………………
n_et (10¹² s cm⁻³)	……………………0.9……………………
Z_Si (solar)	……………………0.4……………………
Z_S (solar)	……………………0.4……………………
Z_Fe (solar)	……………………0.5……………………
v_helio (km s⁻¹)	1440 $_{- 1000}^{+ 100}$	1140 $_{- 810}^{+ 640}$	1440	1140
σ (km s⁻¹)	0	510 $_{- 330}^{+ 1060}$	0	510
Flux, 2–10 keV^‡	9.5 $_{- 3.0}^{+ 4.5}$	9.7 $_{- 3.2}^{+ 4.2}$	6.1	6.2
Flux, fitting band^‡	0.48 $_{- 0.16}^{+ 0.25}$	0.49 $_{- 0.16}^{+ 0.24}$	0.34	0.34
CXB power law
Γ	……………………1.54……………………
Flux, 2–10 keV^‡	……………………0.040……………………
Flux, fitting band^‡	……………………0.0016……………………	……………………0.0006……………………
Spectral fitting band	……………………6.45–6.80 keV……………………	……………………2.40–2.48 keV……………………
C-stat $/$ d.o.f.	107.9 $/$ 696	106.5 $/$ 695	61.0 $/$ 157	59.1 $/$ 156
Goodness-of-fit (KS)^§	24%	20%	62%	31%
Goodness-of-fit (CvM)^§	35%	21%	62%	46%

Table 1.

Open in new tab

Results of SXS spectral fitting.*

Model parameter	Fe xxv fit		S xv fit
	No broadening	With broadening^†	No broadening	With broadening^†
N 132 D CIE plasma (vapec)
kT (keV)	……………………0.7……………………
Z_Si (solar)	……………………0.6……………………
Z_S (solar)	……………………0.9……………………
Z_Fe (solar)	……………………0.4……………………
v_helio (km s⁻¹)	……………………0……………………		210 $_{- 380}^{+ 370}$	520 $_{- 620}^{+ 770}$
σ (km s⁻¹)	……………………0……………………		0	520 $_{- 340}^{+ 780}$
Flux, 2–10 keV^‡	……………………8.8……………………		5.6 $_{- 1.9}^{+ 2.9}$	5.5 $_{- 1.8}^{+ 3.1}$
Flux, fitting band^‡	……………………0.006……………………		1.3 $_{- 0.2}^{+ 0.4}$	1.3 $_{- 0.2}^{+ 0.4}$
N 132 D NEI plasma (vrnei)
kT (keV)	……………………1.5……………………
kT_init (keV)	……………………80……………………
n_et (10¹² s cm⁻³)	……………………0.9……………………
Z_Si (solar)	……………………0.4……………………
Z_S (solar)	……………………0.4……………………
Z_Fe (solar)	……………………0.5……………………
v_helio (km s⁻¹)	1440 $_{- 1000}^{+ 100}$	1140 $_{- 810}^{+ 640}$	1440	1140
σ (km s⁻¹)	0	510 $_{- 330}^{+ 1060}$	0	510
Flux, 2–10 keV^‡	9.5 $_{- 3.0}^{+ 4.5}$	9.7 $_{- 3.2}^{+ 4.2}$	6.1	6.2
Flux, fitting band^‡	0.48 $_{- 0.16}^{+ 0.25}$	0.49 $_{- 0.16}^{+ 0.24}$	0.34	0.34
CXB power law
Γ	……………………1.54……………………
Flux, 2–10 keV^‡	……………………0.040……………………
Flux, fitting band^‡	……………………0.0016……………………		……………………0.0006……………………
Spectral fitting band	……………………6.45–6.80 keV……………………		……………………2.40–2.48 keV……………………
C-stat $/$ d.o.f.	107.9 $/$ 696	106.5 $/$ 695	61.0 $/$ 157	59.1 $/$ 156
Goodness-of-fit (KS)^§	24%	20%	62%	31%
Goodness-of-fit (CvM)^§	35%	21%	62%	46%

Model parameter	Fe xxv fit		S xv fit
	No broadening	With broadening^†	No broadening	With broadening^†
N 132 D CIE plasma (vapec)
kT (keV)	……………………0.7……………………
Z_Si (solar)	……………………0.6……………………
Z_S (solar)	……………………0.9……………………
Z_Fe (solar)	……………………0.4……………………
v_helio (km s⁻¹)	……………………0……………………		210 $_{- 380}^{+ 370}$	520 $_{- 620}^{+ 770}$
σ (km s⁻¹)	……………………0……………………		0	520 $_{- 340}^{+ 780}$
Flux, 2–10 keV^‡	……………………8.8……………………		5.6 $_{- 1.9}^{+ 2.9}$	5.5 $_{- 1.8}^{+ 3.1}$
Flux, fitting band^‡	……………………0.006……………………		1.3 $_{- 0.2}^{+ 0.4}$	1.3 $_{- 0.2}^{+ 0.4}$
N 132 D NEI plasma (vrnei)
kT (keV)	……………………1.5……………………
kT_init (keV)	……………………80……………………
n_et (10¹² s cm⁻³)	……………………0.9……………………
Z_Si (solar)	……………………0.4……………………
Z_S (solar)	……………………0.4……………………
Z_Fe (solar)	……………………0.5……………………
v_helio (km s⁻¹)	1440 $_{- 1000}^{+ 100}$	1140 $_{- 810}^{+ 640}$	1440	1140
σ (km s⁻¹)	0	510 $_{- 330}^{+ 1060}$	0	510
Flux, 2–10 keV^‡	9.5 $_{- 3.0}^{+ 4.5}$	9.7 $_{- 3.2}^{+ 4.2}$	6.1	6.2
Flux, fitting band^‡	0.48 $_{- 0.16}^{+ 0.25}$	0.49 $_{- 0.16}^{+ 0.24}$	0.34	0.34
CXB power law
Γ	……………………1.54……………………
Flux, 2–10 keV^‡	……………………0.040……………………
Flux, fitting band^‡	……………………0.0016……………………		……………………0.0006……………………
Spectral fitting band	……………………6.45–6.80 keV……………………		……………………2.40–2.48 keV……………………
C-stat $/$ d.o.f.	107.9 $/$ 696	106.5 $/$ 695	61.0 $/$ 157	59.1 $/$ 156
Goodness-of-fit (KS)^§	24%	20%	62%	31%
Goodness-of-fit (CvM)^§	35%	21%	62%	46%

*Unless noted otherwise, values without quoted uncertainties are fixed. Uncertainties are 90% confidence limits.

^†Results with broadening assume a Gaussian prior with σ = 1000 km s⁻¹.

^‡Flux is given in units of 10⁻¹² erg cm⁻² s⁻¹. The ratio of the vapec and vrnei component normalizations was fixed to that in Bamba et al. (2017).

^§“Goodness-of-fit” is the percentage of simulated observations with lower fit statistics than the real data, as described in subsection 3.1.

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