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Table 3.
Surface brightness distribution parameters from the adaptively binned image in five annuli.
| Annulus | rin | rout | Nbins | Noutliers | SBfit centroid, 0.7 − 2 keV | SBmean, 0.7 − 2 keV | SBmedian, 0.7 − 2 keV | Skewness | bX |
|---|---|---|---|---|---|---|---|---|---|
| (10−10 photon cm−2 s−1 arcsec−2) | |||||||||
| 1 | 13.03′ | 16.49′ | 76 | 1 | 3.96 |
 |
 |
0.82 ± 0.34 | 1.11 ± 0.12 |
| 2 | 16.49′ | 20.88′ | 144 | 2 | 2.53 |
 |
 |
4.01 ± 1.53 | 1.17 ± 0.07 |
| 3 | 20.88′ | 26.44′ | 256 | 3 | 1.99 |
 |
 |
9.38 ± 2.08 | 1.99 ± 0.19 |
| 4 | 26.44′ | 33.47′ | 368 | 11 | 1.54 |
 |
 |
9.43 ± 1.87 | 1.99 ± 0.17 |
| 5 | 33.47′ | 42.38′ | 238 | 7 | 1.60 |
 |
 |
11.47 ± 2.34 | 1.85 ± 0.26 |
Notes. Noutliers is the number of > 2σ outlier bins, skewness refers to the Fisher-Pearson skewness coefficient of the distributions, and bX = SBmean/SBmedian is the emissivity bias (Sect. 4.1) related to clumping.
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