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Table 1.
Results of the correlation analysis (Pearson correlation coefficients and number of degrees of freedom) between pairs of wavebands and between the X-ray photon index and flux.
| Correlation | Pearson coeff. | Degrees of freedom |
|---|---|---|
| U–X | 0.54 | 265 |
| B–X | 0.50 | 264 |
| V–X | 0.48 | 254 |
| W1–X | 0.57 | 279 |
| M2–X | 0.58 | 269 |
| W2–X | 0.60 | 278 |
| X PhIdx–flux | 0.55 | 303 |
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