Table 2
Emission lines in RGS and LETG/HRC-S spectra during low-flux periods.
| RGS March 2007 | LETG/HRC-S August 2007 | ||||
| ID | λ 0 |
|
F 2 |
|
F2 |
| (Å) | (Å) | (10-13 erg cm-2 s-1) | (Å) | (10-13 erg cm-2 s-1) | |
|
|
|||||
| C VI α | 33.74 | 33.9 ± 0.2 | 9 ± 6 | 33.8 ± 0.1 | 2 ± 1 |
| C VI β | 28.46 | 28.46 ± 0.04 | 5 ± 2 | 28.52 ± 0.04 | 5 ± 4 |
| C VI γ | 26.99 | – | <6 | – | <5.0 |
| N VI r | 28.78 | 28.79 ± 0.03 | 13 ± 5 | 28.85 ± 0.07 | 1.2 ± 0.7 |
| N VI i | 29.08 | – | <6 | – | <4 |
| N VI f | 29.54 | 29.41 ± 0.07 | 9 ± 5 | 29.39 ± 0.04 | 1.2 ± 0.7 |
| 29.59 ± 0.07 | 9 ± 7 | (29.6) | <0.9 | ||
| N VI β/N VII α | 24.90/24.78 | 24.82 ± 0.02 | 14 ± 3 | 24.82 ± 0.1 | 6 |
| N VI γ | 23.77 | – | <3 | – | <3 |
Notes.
Line width frozen for uncertainties determination to σ = 70 mÅ. Lines fit with Gaussian over a flat continuum for a narrow wavelength range around the line of interest, except for the line at 24.9 Å (see text and Fig. 9).
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