Table 2
Best fits to the 2−10 keV EPIC pn spectra for all observations using Models 1a (obs 1−4), 1b (obs 5) and 1c (obs 6) (see text).
| Observation No. | 1 | 2 | 3 | 4T | 4B | 5 | 6 | |
|
|
||||||||
| Comp. | ||||||||
| Parameter | ||||||||
| tbabs | ||||||||
 pn (1022 cm-2) |
7.64 ± 0.05 | 7.58 ± 0.07 | 7.69 ± 0.06 | 7.72 ± 0.06 | 8.19 ± 0.08 | 8.22 ± 0.07 | 8.38 ± 0.09 | |
| diskbb | ||||||||
| kTdbb (keV) | 1.41 ± 0.01 | 1.44 ± 0.02 | 1.49 ± 0.01 | 1.59 ± 0.01 | 1.74 ± 0.01 | 1.81 ± 0.01 | 1.78 ± 0.03 | |
| kdbb [(Rin/D10)2 cosθ] | 197  |
200  |
181 ± 7 | 175 ± 5 | 100 ± 4 | 107 ± 3 | 118 ± 5 | |
| po | ||||||||
| Γ | – | – | – | – | – | – | 2 (f) | |
| kpo [ph keV-1cm-2 s-1 at 1 keV] | – | – | – | – | – | – | 1.76 ± 0.25 | |
| gau e1 | ||||||||
| Egau (keV) | 6.40  |
6.55 ± 0.24 | 6.42  |
6.97  |
– | – | – | |
| σ (keV) | 1 |
1  |
0.99  |
0.33  |
– | – | – | |
| kgau (10-3 ph cm-2 s-1) | 12 ± 3 | 10  |
7 ± 5 | 3  |
– | – | – | |
| EW (eV) | 161 ± 40 | 123  |
76 ± 54 | 34  |
– | – | – | |
| gau e2 | ||||||||
| Egau (keV) | – | – | – | – | – | – | 7.26 ± 0.04 | |
| σ (keV) | – | – | – | – | – | – | 0.10 ± 0.06 | |
| kgau (10-3 ph cm-2 s-1) | – | – | – | – | – | – | 3.2 ± 1.0 | |
| EW (eV) | – | – | – | – | – | – | 23 ± 7 | |
| gau a1 | ||||||||
| Egau (keV) | 2.62 ± 0.04 | 2.59 ± 0.05 | 2.61 ± 0.06 | 2.58 ± 0.05 | – | – | – | |
| σ (keV) | 0.08 |
0.1 |
0.1 |
0.1  |
– | – | – | |
| kgau (10-3 ph cm-2 s-1) | 8.4 ± 3.8 | 10  |
9.8  |
13 ± 5 | – | – | – | |
| EW (eV) | 11 ± 5 | 13  |
12  |
13 ± 5 | – | – | – | |
| gau a2 | ||||||||
| Egau (keV) | 2.94 ± 0.08 | 2.92  |
2.92 ± 0.09 | 2.94  |
– | – | – | |
| σ (keV) | 0.1 |
0.1 |
0.1 |
0.06  |
– | – | – | |
| kgau (10-3 ph cm-2 s-1) | 5.5  |
5 ± 3 | 5.5 ± 2.9 | 4.1  |
– | – | – | |
| EW (eV) | 9 ± 4 | 7 ± 5 | 8 ± 4 | 5  |
– | – | – | |
| gau a3 | ||||||||
| Egau (keV) | 6.78 ± 0.01 | 6.73 ± 0.03 | 6.78 ± 0.02 | 6.79 ± 0.04 | 6.75  |
– | – | |
| σ (keV) | <0.07 | 0 |
<0.07 | 0.0  |
0.0 |
– | – | |
| kgau (10-3 ph cm-2 s-1) | 2.0 ± 0.3 | 1.4 ± 0.3 | 1.3 ± 0.2 | 1.4  |
1.1 ± 0.5 | – | – | |
| EW (eV) | 32 ± 5 | 19 ± 4 | 17 ± 3 | 13  |
10 ± 5 | – | – | |
| gau a4 | ||||||||
| Egau (keV) | 7.05 ± 0.02 | 7.01 ± 0.01 | 7.04 ± 0.01 | 7.04  |
7.08 ± 0.04 | – | – | |
| σ (keV) | 0.03 ± 0.02 | 0.05 ± 0.02 | 0.04 ± 0.02 | 0.05 ± 0.05p | 0.0 |
– | – | |
| kgau (10-3 ph cm-2 s-1) | 2.4 ± 0.3 | 3.2 ± 0.4 | 2.9 ± 0.4 | 3.4  |
1.3 ± 0.5 | – | – | |
| EW (eV) | 48 ± 6 | 52 ± 6 | 47 ± 6 | 38  |
16 ± 6 | – | – | |
| gau a5 | ||||||||
| Egau (keV) | 7.90 ± 0.02 | 7.92 ± 0.09 | 7.97 ± 0.05 | 8.14  |
– | – | – | |
| σ (keV) | 0 |
0 |
0.1 |
0.05  |
– | – | – | |
| kgau (10-3 ph cm-2 s-1) | 0.6 ± 0.1 | 0.3 ± 0.2 | 0.7 ± 0.3 | <0.7 | – | – | – | |
| EW (eV) | 20 ± 3 | 7 ± 5 | 17 ± 7 | <16 | – | – | – | |
| gau a6 | ||||||||
| Egau (keV) | 8.29 ± 0.02 | 8.25 ± 0.05 | 8.31  |
8.43  |
– | – | – | |
| σ (keV) | 0.1  |
0.1 |
0 |
0.0 |
– | – | – | |
| kgau (10-3 ph cm-2 s-1) | 0.8 ± 0.2 | 0.8 ± 0.2 | 0.6 ± 0.1 | 0.3 ± 0.2 | – | – | – | |
| EW (eV) | 33 ± 8 | 28 ± 7 | 20 ± 3 | 6 ± 4 | – | – | – | |
| edge 1 | ||||||||
| Eedge (keV) | 8.83 (f) | 8.83 (f) | 8.83 (f) | 8.83 (f) | 8.83 (f) | – | – | |
| τ | 0.05 |
0.04 ± 0.02 | 0.06 ± 0.03 | 0.03 ± 0.02 | <0.06 | – | – | |
| edge 2 | ||||||||
| Eedge (keV) | 9.28 (f) | 9.28 (f) | 9.28 (f) | 9.28 (f) | – | – | – | |
| τ | <0.02 | <0.08 | <0.03 | <0.03 | – | – | – | |
|
|
||||||||
| F2 − 10 keV (10-8 erg cm-2 s-1) | 1.01 | 1.14 | 1.16 | 1.51 | 1.29 | 1.63 | 2.12 | |
|
|
||||||||
 (d.o.f.) |
0.49 (107) | 0.63 (106) | 0.47 (106) | 0.46 (107) | 0.97 (122) | 1.10 (129) | 1.08 (126) | |
Notes. is the column density for the neutral absorber. kdbb, kpo and kgau are the normalisations of the disc blackbody component, power law and Gaussian features, respectively. kTdbb is the temperature of the disc blackbody component and Γ the index of the power law. Egau, σ and EW represent the energy, width and equivalent width of the Gaussian features. Eedge and τ are the energy and optical depth of the absorption edges. F is the unabsorbed flux of the continuum between 2 and 10 keV. f indicates that a parameter was fixed. The width of the absorption features was constrained to be ≲0.1 keV and of the broad emission feature (gaue1) to ≲1 keV. p indicates that the error of a parameter pegged at the limit imposed.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.