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Table 1
Spectral parameters obtained from the composite model fits including two Hot absorber models to the RGS spectrum of V2491 Cyg.
| Model | Parameters | Region1 | Region2 | Region3 | 2nd obs. |
|
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| Blackbody | Norm (1020 cm2) |
|
|
|
|
| Temperature (eV) |
|
|
|
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|
| Luminosity (1039 erg s-1) | 2.18 | 0.23 | 1.92 | 0.05 | |
|
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| CIE | Norm (1058 cm-3) |
|
|
|
|
| Temperature (keV) |
|
|
|
|
|
| vmic (km s-1) | 2791 | 2791 |
|
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|
| Ne abundance | 2.45 | 2.45 |
|
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|
| Mg abundance | 1.2 | 1.2 |
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|
| Luminosity (1036 erg s-1) | 1.31 | 1.78 | 1.38 | 0.77 | |
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| HOT-1 | NH (1024 cm-2) |
|
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|
| Temperature (keV) |
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|
| σv rms velocity (km s-1) |
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| Velocity shift (km s-1) |
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|
|
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| HOT-2 | NH (1024 cm-2) |
|
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| Temperature (keV) |
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|
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|
| σv rms velocity (km s-1) |
|
<9 |
|
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|
| Velocity shift (km s-1) |
|
|
|
|
|
|
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| Abundances | C abundance | 0.43 | 0.43 |
|
0.43 |
| N abundance | 5.2 | 5.9 |
|
5.9 | |
| O abundance | 37.9 | 37.9 |
|
37.9 | |
| Si abundance | 0.02 | 0.02 | <0.02 | 0.02 | |
| S abundance | 0.02 | 0.02 |
|
0.02 | |
| Ar abundance | 1.6 | 1.6 |
|
1.6 | |
| Ca abundance | 0.01 | 0.01 | <0.01 | 0.01 | |
| Fe abundance | 8.9 | 8.9 |
|
8.9 | |
|
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| HOT-ISM | NH (1021 cm-2) |
|
|
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| Temperature (eV) |
|
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|
| N abundance | 1.16 | 1.16 |
|
1.16 | |
| O abundance | 1.75 | 1.75 |
|
1.75 | |
| Fe abundance | 0.95 | 0.95 |
|
0.95 | |
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| AMOL (Dust) | O2 (1017 cm-2) |
|
|
<0.1 |
|
| H2O (ice) (1017 cm-2) |
|
|
4.77 |
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| CO (1017 cm-2) |
|
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|
<0.1 | |
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|
1.80 | 2.4 | 2.86 | 2.3 | |
| (d.o.f.) | (1415) | (1439) | (1440) | (1465) | |
Notes. Errors are calculated at the 90% confidence level.
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