Table 5
Parameters of the Gaussian (Models 1a, 1b, 1c, and 1d) and laor (Models 2a, 2b, 2c and 2d) components used to model the Fe emission at ~ 6 keV.
| Target | Observation | gau2 | laor | ||||||||
| E gau | σ | k gau | EW | E laor | β | r in | i | k laor | EW | ||
| (keV) | (keV) | (eV) | (keV) | ° | (eV) | ||||||
|
|
|||||||||||
| 4U 0614 + 09 | 0111040101 | 6.79 ± 0.16 | 0.94 |
8 |
185 |
6.50 ± 0.10 | 2.1 ± 0.3 | 4.0 |
70 |
7 |
160 |
| 4U 1543 − 62 | 0061140201 | 6.77 |
0.33 ± 0.13 | 0.97 |
23 |
6.56 |
3.6 |
64 |
63 |
1.21 ± 0.35 | 32 ± 9 |
| 4U 1636 − 536 | 0303250201 | 6.78 ± 0.01 | 1.15 ± 0.17 | 14.6 ± 9 | 210 ± 129 | 6.40 |
2.3 ± 0.2 | < 6.25 | 70 |
9 ± 1 | 130 ± 14 |
| 0500350301 | 6.97 |
0.6 ± 0.3 | 3 ± 2 | 28 ± 19 | 6.97 (f) | 2.2 |
< 64 | 50 |
3.5 |
36 |
|
| 0500350401 | 6.97 |
0.94 |
8.3 |
59 |
6.95 |
4.8 (f) | 205.8 (f) | 14 (f) | 0.9 ± 0.5 | 6 ± 3 | |
| GX 340 + 0 | 0505950101 | 6.72 ± 0.06 | 0.17 |
22.0 |
17 |
6.82 |
2.56 (f) | > 16 | < 34 | 19.7 |
15 ± 5 |
| GX 349 + 2 | 0506110101 | 6.72 ± 0.06 | 0.32 |
96 |
82 |
6.94 |
3.1 |
11 |
17 ± 9 | 104 |
96 |
| 4U 1705 − 44 | 0402300201 | 6.53 ± 0.07 | 0.34 |
1.4 ± 0.4 | 57 ± 16 | 6.51 ± 0.08 | < 3.1 | < 110 | 45 ± 12 | 1.4 ± 0.4 | 58 ± 16 |
| 0551270201 | 6.56 ± 0.05 | 0.44 ± 0.06 | 61 |
92 |
6.45 |
1.8 |
< 9.1 | 65 |
83 |
135 |
|
| Ser X − 1 | 0084020401 | 6.61 ± 0.05 | 0.22 |
22 |
52 |
6.79 |
2.84 |
13.3 |
< 33 | 25.2 ± 4.8 | 63 ± 12 |
| 0084020501 | 6.58 ± 0.07 | 0.25 ± 0.08 | 15.7 |
50 |
6.6 ± 0.1 | 2.03 (f) | 11.15 (f) | 28 ± 9 | 17.5 ± 4 | 59 ± 13.5 | |
| 0084020601 | 6.59 |
0.27 |
18.7 |
51 |
6.73 |
2.6 |
11 |
< 25 | 19.4 |
57 ± 18 | |
| 4U 1728 − 34 | 0149810101 | 6.72 ± 0.10 | 0.98 |
21 |
189 |
6.53 |
2.6 ± 0.4 | 20 |
70 |
7.7 |
80 |
| 4U 1735 − 44 | 0090340201 | 6.74 ± 0.10 | 0.38 ± 0.11 | 22 ± 7 | 46 ± 14 | 6.73 |
< 2.94 | 5.41 (f) | 44 |
20 ± 6 | 43 ± 13 |
| SAX J1808.4 − 3658 | 0560180601 | 6.94 |
0.26 |
1.5 |
23 |
6.50 |
3 |
6.3 |
46 |
3.1 |
51 |
| 0560180601** | 6.77 ± 0.13 | 0.39 |
1.9 ± 0.7 | 30 ± 11 | 6.96 |
5.0 |
33 |
26 |
1.8 ± 0.6 | 31 ± 10 | |
Notes. Egau and σ represent the energy and width of the Gaussian feature. The parameters of the laor component Elaor, β, rin, i and klaor account for energy, emissivity index, inner radius (in units of rg), inclination and normalisation. β is constrained to be < 5. The inner radius is constrained to be > 1.235 rg (GM / c2). The inclination is constrained to be < 70°, since none of the sources is a known dipper or eclipsing system. The outer radius has been fixed to 400 rg for all sources, since it is not well constrained. The normalisation is in units of (10-4 ph cm-2 s-1) for both components. Parameters that are completely unconstrained when the errors are calculated have been fixed at their best value and are indicated in the table with “(f)”. A star (*) means that the error has reached the maximum or minimum allowed value of the parameter. For SAX J1808.4 − 3658 we show results for two spectra, which only differ in the pile-up treatment (see text).
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