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Table 7.
Results of the F-test between tbabs⊗tbabs⊗(diskbb + diskbb) (1) and tbabs⊗tbabs⊗(diskbb + simpl⊗diskbb) (2) models.
| Epoch | χr1/d.o.f.1 (a) | χr2/d.o.f.2 (b) | Δχ | [1-Prob(F-test)] × 100 (%) | simpl ? |
|---|---|---|---|---|---|
| Holmberg II X–1 | |||||
| 1X | 1.01/281 | 0.90/279 | 32.8 | 100.0 | Yes |
| 2X | 1.06/246 | 1.02/244 | 10.7 | 99.40 | Yes |
| 3X | 1.07/124 | 1.08/122 | 1.3 | 45.02 | No |
| 4X | 1.32/392 | 1.15/390 | 70.9 | 100.0 | Yes |
| 5X | 1.12/316 | 1.06/314 | 22.6 | 100.0 | Yes |
| 6XNN | 1.31/490 | 0.99/488 | 159.2 | 100.0 | Yes |
| 7XN | 1.17/467 | 0.91/465 | 125.5 | 100.0 | Yes |
Notes. Epochs are sorted chronologically and the nomenclature indicates the number of XMM-Newton, Chandra, and NuSTAR observations fit together (see Table 1). The full table is available at the CDS.
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