Table 3
Spectral parameters for a simultaneous fit of the EPIC and RGS spectra.
| Obs. | log Nwind | k T1 | Norm1 | k T2 | Norm2 | (N/H)/(N/H)⊙ |  (d.o.f.) |
|
|
|
|
|||||||||
| (cm-2) | (keV) | (cm-5) | (keV) | (cm-5) | 10-13 erg cm-2 s-1 | ||||
|
|
|||||||||
| I |
|
|
|
|
|
|
1.67 (1253) | 6.90 ± 0.10 | 16.7 |
| II |
|
|
|
|
|
|
1.78 (1265) | 7.24 ± 0.09 | 17.8 |
| III |
|
|
|
|
|
|
1.76 (1370) | 7.33 ± 0.10 | 17.8 |
| IV |
|
|
|
|
|
|
1.45 (1279) | 7.45 ± 0.10 | 18.0 |
Notes. The RGS data are fitted between 0.4 and 1.5 keV. The expression of the xspec model is wabs*mtab{wind}*apec(2T). The interstellar neutral hydrogen column density is fixed to 0.25 × 1022 cm-2. The helium abundance by mass y is set to 1.33 solar. Except for nitrogen, all other abundances are kept solar. The last two columns provide the observed (last-but-one column) and ISM corrected (last column) fluxes in the energy band 0.5−10 keV. The normalization of the models is given as 
where ne and nH are the electron and proton densities of the X-ray emitting plasma in cm-3, and d is the distance in cm. The quoted error bars correspond to the 90% confidence level.
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.