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Table 3

Parameters of the least-squares fit to the B-C blue-filter (index B) and red-filter (index R) data.

Frequency Semi-amplitudes Phases and phase difference β i
f i [d-1] AB [mmag] AR [mmag] φB [rad] φR [rad] φBφR [rad] [10-6 d-2]

f1 = f3f2 0.86833 1.811 ± .036 1.220 ± .045 0.267 ± .023 0.146 ± .038 +0.12 ± .05
f 2 5.54517 ± .00009 1.540 ± .036 0.786 ± .046 0.125 ± .025 0.018 ± .066 +0.14 ± .07 1.8
f 3 6.41350 ± .00010 1.069 ± .038 0.554 ± .048 1.777 ±. 035 1.673 ± .086 +0.10 ± .09 +6.7
f 4 1.59815 ± .00023 0.680 ± .039 0.405 ± .047 0.776 ± .058 0.465 ± .126 +0.31 ± .14 +1.9
f 5 0.35367 ± .00019 0.609 ± .036 0.547 ± .047 4.274 ± .061 4.092 ± .087 +0.18 ± .11 1.8
f 6 4.04180 ± .00019 0.771 ± .040 0.694 ± .047 4.757 ± .051 4.350 ± .069 +0.41 ± .09 8.5
f 7 1.19867 ± .00018 0.717 ± .039 0.448 ± .047 3.462 ± .052 3.563 ± .108 0.10 ± .12 8.7
f 8 4.44439 ± .00029 0.507 ± .038 0.331 ± .045 2.937 ± .080 3.179 ± .141 0.24 ± .16 9.3
f 9 1.52100 ± .00028 0.679 ± .039 0.291 ± .048 1.032 ± .058 0.685 ± .164 +0.35 ± .18 +3.1
f 10 1.32022 ± .00030 0.553 ± .037 0.501 ± .046 2.595 ± .072 2.330 ± .097 +0.26 ± .12 +15.4
f 11 5.61725 ± .00040 0.492 ± .037 0.318 ± .048 1.288 ± .077 0.895 ± .151 +0.39 ± .17 +28.8
f 12 4.88617 ± .00023 0.563 ± .039 0.419 ± .047 0.122 ± .067 0.090 ± .111 +0.21 ± .13 1.8
f 13 4.16793 ± .00021 0.572 ± .038 0.312 ± .050 5.698 ± .068 5.471 ± .169 +0.23 ± .18 14.9
f 14 4.10357 ± .00045 0.424 ± .038 0.356 ± .049 3.218 ± .092 2.875 ± .134 +0.34 ± .16 2.2
f 15 0.67907 ± .00032 0.371 ± .037 0.250 ± .048 0.247 ± .101 0.108 ± .196 +0.36 ± .22 11.6
f 16 1.63040 ± .00049 0.381 ± .036 0.203 ± .047 0.607 ± .098 0.291 ± .243 +0.32 ± .26 +16.9
f 17 1.34157 ± .00027 0.425 ± .036 0.308 ± .048 4.913 ± .090 5.404 ± .168 0.49 ± .19 2.4
f 18 4.36444 ± .00035 0.262 ± .036 0.391 ± .049 1.131 ± .148 1.262 ± .123 0.13 ± .19 13.2
f19 = f2 + f3 11.95867 0.364 ± .036 0.354 ± .046 3.549 ± .106 3.461 ± .137 +0.09 ± .18

Notes. The phases are given at epoch HJD 2 456 840.0. The last column includes linear rates of frequency changes, β; see Sect. 3.3 for explanation.

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