Table 2.
Parameters a and b of the linear fits according to Eq. (3).
| Class | Δ(log Δt) | n | b | a | σ |
| Hα | |||||
| D | −1.7 .. −0.8 | 15 | 36.21(21) | 0 | 0.79 |
| −0.8 .. 2.0 | 28 | 34.70(14) | −2.40(13) | 0.64 | |
| J | −1.0 .. −0.6 | 2 | 35.65(27) | 0 | 0.27 |
| −0.4 .. 1.9 | 13 | 35.14(35) | −2.36(31) | 0.81 | |
| P | −0.3 .. 1.8 | 13 | 34.36(32) | −2.35(43) | 0.82 |
| S | −2.0 .. −1.0 | 8 | 35.32(17) | −1.13(13) | 0.11 |
| −2.0 .. −1.0 | 8 | 36.76(13) | 0 | 0.35 | |
| −1.3 .. 1.4 | 24 | 33.79(06) | −2.52(06) | 0.22 | |
| 0.9 .. 1.8 | 8 | 30.73(07) | 0 | 0.20 | |
| V838 Her | −1.6 .. 0.2 | 13 | 31.89(07) | −2.83(09) | 0.14 |
| VF | −2.0 .. −1.0 | 8 | 35.32(17) | −1.13(13) | 0.11 |
| −2.0 .. −1.0 | 8 | 36.76(13) | 0 | 0.35 | |
| −1.0 .. 1.2 | 19 | 33.72(06) | −2.67(08) | 0.21 | |
| 1.6 .. 2.0 | 7 | 30.74(32) | 0 | 0.83 | |
| F | −0.4 .. 1.7 | 22 | 34.11(23) | −2.24(24) | 0.69 |
| MF | −1.7 .. −0.6 | 21 | 36.33(15) | 0 | 0.70 |
| −0.7 .. 2.0 | 18 | 34.59(24) | −2.17(19) | 0.71 | |
| SVS | −1.0 .. 0.0 | 5 | 35.69(18) | 0 | 0.41 |
| 0.0 .. 1.9 | 12 | 35.61(49) | −2.70(38) | 0.78 | |
| [O III] | |||||
| D | −0.2 .. 2.0 | 21 | 35.80(22) | −3.63(20) | 0.66 |
| J | −0.7 .. 0.25 | 23 | 35.23(06) | 0 | 0.28 |
| 0.25 .. 1.9 | 23 | 36.30(31) | −3.39(32) | 0.72 | |
| O | −1.2 .. −0.4 | 21 | 36.66(05) | 0 | 0.21 |
| −0.4 .. 2.0 | 12 | 35.50(34) | −2.61(31) | 0.97 | |
| P | −0.4 .. 0.1 | 6 | 34.60(12) | 0 | 0.29 |
| 0.1 .. 1.8 | 26 | 34.73(16) | −2.39(27) | 0.50 | |
| S | −1.2 .. −0.4 | 15 | 35.11(13) | −0.68(17) | 0.14 |
| −1.2 .. −0.4 | 15 | 35.61(05) | 0 | 0.19 | |
| −0.5 .. 1.2 | 9 | 34.04(16) | −3.78(28) | 0.50 | |
| 0.9 .. 1.7 | 3 | 29.69(17) | 0 | 0.29 | |
| V838 Her | −1.3 .. −0.2 | 10 | 31.54(16) | −2.16(24) | 0.25 |
| VF | −1.2 .. 0.0 | 27 | 35.74(08) | 0 | 0.40 |
| −0.5 .. 1.0 | 14 | 34.51(21) | −3.65(52) | 0.71 | |
| 1.6 .. 2.0 | 5 | 30.78(43) | 0 | 0.95 | |
| F | −0.4 .. 0.25 | 17 | 34.26(12) | 0 | 0.49 |
| 0.25 .. 1.5 | 23 | 35.46(23) | −3.96(31) | 0.55 | |
| MF | −0.25 .. 0.25 | 8 | 36.04(17) | 0 | 0.48 |
| 0.1 .. 2.0 | 13 | 36.00(50) | −3.69(38) | 0.76 | |
| SVS | −0.7 .. 0.3 | 26 | 35.23(06) | 0 | 0.31 |
| 0.3 .. 1.9 | 21 | 36.37(34) | −3.35(31) | 0.68 | |
Notes. Δ(log Δt) gives the time range of the corresponding segment, with Δt in yr, n is the number of data points used in the fit, and σ is the standard deviation of the linear regression. For a few groups, two rows are given for the same interval. The first corresponds to the linear fit, while the second states the mean value for b, setting the slope a to zero.
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