Table 1
Spectral analysis of 4U 1344-60 – the model parameters.
| Model component | Parameter | Flat power-law model | “Part. cov.” model | Complex model “fix” | Complex model “free” | |||||
|
|
||||||||||
| XMM | Suzaku | XMM | Suzaku | XMM | Suzaku | XMM | Suzaku | |||
|
|
||||||||||
| local absorption | nH,fully [1022 cm-2] |
|
0.93 ± 0.02 | 0.92 ± 0.02 | 0.95 ± 0.02 | 0.98 ± 0.02 | ||||
|
|
||||||||||
| ... | nH,part [1022 cm-2] | ... |
|
|
8.2 ± 1.5 | |||||
|
|
||||||||||
| ... | cov. fraction [%] | ... |
|
6 ± 3 | 50 ± 3 | 5 ± 3 |
|
10 ± 6 | ||
|
|
||||||||||
| power law | Γ |
|
|
1.66 ± 0.09 | 1.72 ± 0.02 |
|
|
1.83 ± 0.06 | ||
|
|
||||||||||
| reflection | R | ... | ... | 0.48 ± 0.05 | 2 ± 1 | |||||
|
|
||||||||||
| ... | Efold | ... | ... | 100 (f) | 200 ± 100 | |||||
|
|
||||||||||
| ... | i [deg] | ... | ... | 45 (f) | 85-6 | |||||
|
|
||||||||||
| ... | Ndir [10-3] |
|
10.9 ± 0.2 | 7.1 ± 0.4 | 11.0 ± 0.3 |
|
11.2 ± 0.2 | 7.5 ± 0.5 | 12.2 ± 0.6 | |
|
|
||||||||||
| ... | Nabs [10-3] | ... | 6 ± 2 |
|
7.6 ± 0.3 | 0.6 ± 0.4 | 5 ± 2 | 1.4 ± 0.8 | ||
|
|
||||||||||
| Gaussian line | Erest [keV] |
|
6.40 ± 0.01 |
|
6.40 ± 0.01 | ... | ... | |||
|
|
||||||||||
| ... | σ [keV] |
|
|
|
0.08 ± 0.02 | ... | ... | |||
|
|
||||||||||
| ... | Nline [10-5] | 10 ± 3 |
|
9 ± 3 |
|
... | ... | |||
|
|
||||||||||
| fit goodness | C/ν | 9543/9110 | 9484/9108 | 9477/9114 | 9460/9111 | |||||
Notes. The common parameters for all the fits are the column density of the absorber due to interstellar matter in our Galaxy nH,ISM = 1.06 × 1022 cm-2 (Kalberla et al. 2005), and the cosmological redshift z = 0.012 ± 0.002 (Piconcelli et al. 2006). Solar abundances were assumed in the reflection models. The Ndir parameter is a normalisation factor of the direct component while Nabs corresponds to the component affected by the partially covering absorber. They belong to the power-law, or the reflection model by pexmon, respectively. The sign “(f)” means that the parameter was fixed to that value.
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.