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Table 2.
Variability statistics of the Swift continua XRT, W2, M2, W1, U, B, and V (and their central wavelengths in Å) for the years 2007–2025, 2007–2017, and 2019–2025: minimum flux, maximum flux, peak-to-peak ratio, mean flux, standard deviation, fractional variation, and their uncertainty.
| Cont. | Fmin | Fmax | Rmax | ⟨F⟩ | σF | Fvar | σFvar |
|---|---|---|---|---|---|---|---|
| ’07–’25 | |||||||
| XRT | 2.22 | 23.96 | 10.79 | 9.71 | 4.71 | 0.47 | 0.05 |
| W2–1928 | 2.29 | 20.39 | 8.90 | 7.83 | 4.59 | 0.58 | 0.06 |
| M2–2246 | 1.98 | 19.63 | 9.91 | 7.82 | 4.54 | 0.58 | 0.06 |
| W1–2600 | 2.31 | 19.10 | 8.27 | 8.11 | 4.23 | 0.52 | 0.05 |
| U–3464 | 4.69 | 19.95 | 4.25 | 10.60 | 4.13 | 0.39 | 0.04 |
| B–4392 | 4.68 | 26.22 | 5.60 | 16.55 | 4.49 | 0.27 | 0.03 |
| V–5468 | 15.7 | 29.32 | 1.87 | 21.56 | 3.83 | 0.17 | 0.02 |
| ’07–’17 | |||||||
| XRT | 2.22 | 12.71 | 5.73 | 7.04 | 3.93 | 0.55 | 0.13 |
| W2 | 2.29 | 9.85 | 4.30 | 3.39 | 2.05 | 0.60 | 0.10 |
| M2 | 1.98 | 9.92 | 5.01 | 3.09 | 1.75 | 0.56 | 0.10 |
| W1 | 2.31 | 9.57 | 4.14 | 3.55 | 1.64 | 0.46 | 0.08 |
| U | 4.69 | 11.80 | 2.52 | 6.10 | 1.98 | 0.32 | 0.05 |
| B | 4.68 | 17.32 | 3.70 | 11.95 | 2.26 | 0.18 | 0.03 |
| V | 15.7 | 22.44 | 1.43 | 17.64 | 1.45 | 0.06 | 0.02 |
| ’19–’25 | |||||||
| XRT | 3.30 | 23.96 | 7.26 | 10.34 | 4.65 | 0.44 | 0.05 |
| W2 | 4.62 | 20.39 | 4.41 | 10.24 | 3.72 | 0.36 | 0.04 |
| M2 | 5.40 | 19.63 | 3.64 | 10.40 | 3.36 | 0.32 | 0.04 |
| W1 | 5.26 | 19.10 | 3.63 | 10.46 | 3.07 | 0.29 | 0.04 |
| U | 7.44 | 19.95 | 2.68 | 12.98 | 2.76 | 0.21 | 0.03 |
| B | 10.4 | 26.22 | 2.51 | 18.99 | 3.32 | 0.17 | 0.02 |
| V | 19.4 | 29.32 | 1.51 | 23.76 | 2.88 | 0.11 | 0.02 |
Notes. In units of 10−12 erg cm−2 s−1.
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