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Table 4
APEC model parameters obtained from analysis of annular spectra from A2744.
| All | ||||
| Region | 0′−2′a | 2′−5′ | 5′−8′ | 8′−12′ |
|
|
||||
| kT [keV] |
|
|
|
– |
| Z [solar] |
|
|
|
– |
| Norm |
|
|
|
– |
| χ2/d.o.f. | 1032/956 | 841/750 | 323/289 | – |
|
|
||||
| NW | ||||
| Region | 0′−2′ | 2′−5′ | 5′−8′ | 8′−12′ |
|
|
||||
| kT [keV] | – |
|
|
|
| Z [solar] | – |
|
|
|
| Norm | – |
|
|
|
| χ2/d.o.f. | – | 570/546 | 246/197 | 221/189 |
|
|
||||
| NE | ||||
| Region | 0′−2′ | 2′−5′ | 5′−8′ | 8′−12′ |
|
|
||||
| kT [keV] | – |
|
|
– |
| Z [solar] | – |
|
|
– |
| Norm | – |
|
|
– |
| χ2/d.o.f. | – | 283/294 | 60.6/73 | – |
|
|
||||
| S | ||||
| Region | 0′−2′ | 2′−5′ | 5′−8′ | 8′−12′ |
|
|
||||
| kT [keV] | – |
|
|
|
| Z [solar] | – |
|
|
|
| Norm | – |
|
|
|
| χ2/d.o.f. | – | 271/236 | 170/145 | 45.3/62 |
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