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Table 3
X-ray spectral parameters derived from the XMM-Newton observations of HD 54879 assuming a three-temperature plasma model.
| Two-temperature thermal model | |
|
|
|
| NH [1021 cm-2] | 4.2 ± 0.4 |
| kT1 [keV] | 0.18 ± 0.01 |
| EM1 [1054 cm-3] | 6.60 ± 0.4 |
| kT2 [keV] | 0.73 ± 0.02 |
| EM2 [1054 cm-3] | 2.46 ± 0.03 |
| ⟨ kT ⟩ ≡ ∑ ikTi·EMi/ ∑ iEMi [keV] | 0.33 |
|
|
|
| Three-temperature thermal model | |
|
|
|
| NH [1021 cm-2] | 3.6 ± 0.5 |
| kT1 [keV] | 0.18 ± 0.01 |
| EM1 [1054 cm-3] | 3.70 ± 0.01 |
| kT2 [keV] | 0.74 ± 0.02 |
| EM2 [1054 cm-3] | 2.01 ± 0.05 |
| kT3 [keV] | 2.1 ± 0.6 |
| EM3 [1054 cm-3] | 0.31 ± 0.01 |
| ⟨ kT ⟩ ≡ ∑ ikTi·EMi/ ∑ iEMi [keV] | 0.46 |
| Flux [10-13 erg cm-2 s-1] | 1.6 |
|
|
|
| LXa [erg s-1] | 1 × 1032 |
| log LX/Lbol | −6 |
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