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Table 2
Spectral parameters obtained from the composite model fits including two Hot absorber and one xabs models to the RGS spectra of V2491 Cyg.
| Model | Parameters | Region 1 | Region 2 | Region 3 | 2nd obs. |
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| Blackbody | Norm (1020 cm2) |
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| Temperature (eV) |
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| Luminosity (1039 erg/s) | 1.37 | 0.43 | 1.57 | 0.06 | |
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| CIE | Norm (1058 cm-3) |
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| Temperature (keV) |
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| vmic (km s-1) | 2914 | 2914 |
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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) | 1.34 | 1.49 | 1.18 | 0.88 | |
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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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| HOT-2 | NH (1024 cm-2) |
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| Temperature (keV) |
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| σv rms velocity (km s-1) | <37 | <20 |
|
<17 | |
| Velocity shift (km s-1) |
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| XABS | NH (1020 cm-2) |
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| Log ξ (erg cm s-1) |
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| σv rms velocity (km s-1) |
|
<15 831 |
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| velocity shift (km s-1) |
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| Abundances | C abundance | 0.38 | 0.38 |
|
0.38 |
| N abundance | 5.8 | 5.8 |
|
5.8 | |
| O abundance | 15.9 | 15.9 |
|
15.9 | |
| Si abundance | 0.06 | 0.06 | <0.06 | 0.06 | |
| S abundance | 0.02 | 0.02 |
|
0.02 | |
| Ar abundance | 0.5 | 0.5 | <0.5 | 0.5 | |
| Ca abundance | 0.02 | 0.02 | <0.02 | 0.02 | |
| 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 | 1.12 | 1.12 |
|
1.12 | |
| O abundance | 1.68 | 1.68 |
|
1.68 | |
| Fe abundance | 0.81 | 0.81 |
|
0.81 | |
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| AMOL (Dust) | O2 (1017 cm-2) |
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<0.4 |
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| H2O (ice) (1017 cm-2) |
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4.65 |
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| CO (1017 cm-2) |
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<0.2 | |
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1.73 | 2.38 | 2.46 | 2.06 | |
| (d.o.f.) | (1411) | (1435) | (1436) | (1463) | |
Notes. Errors are calculated at the 90% confidence level.
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