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Table 2
Best fit parameters for the 2 NEI and the cooling model.
| Model A | Model B | ||||
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| Parameter | RGS | MOS | RGS | MOS | |
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| NH | (1021 cm-2) | 1.14 ± 0.01 | 1.14 ± 0.01 | 1.14 ± 0.01 | 1.14 ± 0.01 |
| ne nh V1 | (1058 cm-3) | 20.5 ± 0.5 | 14.9 ± 0.2 | 10.5 ± 0.3 | 11.4 ± 0.1 |
| ne nh V2 | (1058 cm-3) | 99.6 ± 3.7 | 103.5 ± 1.6 | 190 ± 7.5 | 138.5 ± 1.6 |
| Preshock kT | (keV) | – | – | 3.0 | 3.0 |
| k T1 | (keV) | 0.85 (fixed) | 0.85 ± 0.01 | 0.85 (fixed) | 0.85 ± 0.01 |
| ne t1 | (1010 cm-3 s) | 4.67 ± 0.32 |
|
2.32 ± 0.13 | 6.7 ± 0.2 |
| k T2 | (keV) | 0.19 ± 0.00 | 0.22 ± 0.00 | 0.15 ± 0.00 | 0.18 ± 0.00 |
| ne t2 | (1010 cm-3 s) | 41.2 ± 6.6 |
|
54.5 ± 3.7 | 99.6 ± 2.7 |
| LX | (1034 erg s-1) | 12.5 | 9.4 | 14 | 8.8 |
| C-stat / d.o.f.a | – | 1170/632 | – | 1068/633 | |
| Element | Abundance (wrt solar) | ||||
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| C | 0.55 ± 0.08 | – | 0.18 ± 0.03 | – | |
| N | 0.06 ± 0.02 | – | 0.07 ± 0.02 | – | |
| O | 0.20 ± 0.01 | 0.19 ± 0.01 | 0.26 ± 0.01 | 0.22 ± 0.01 | |
| Ne | 0.22 ± 0.02 | 0.22 ± 0.02 | 0.33 ± 0.03 | 0.24 ± 0.02 | |
| Mg | – | 0.31 ± 0.02 | – | 0.27 ± 0.02 | |
| Si | – | 0.25 ± 0.03 | – | 0.19 ± 0.02 | |
| S | – | 0.33 ± 0.09 | – | 0.31 ± 0.07 | |
| Fe | 0.26 ± 0.01 | 0.29 ± 0.01 | 0.38 ± 0.02 | 0.43 ± 0.02 | |
Notes. The Anders & Grevesse (1989) Solar abundances were used. The abundances are comparable between the instruments.
(a)
The C-stat/d.o.f. of the RGS data can be found in Table 1.
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