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This article has an erratum: [https://doi.org/10.1051/0004-6361/201321819e]


Table 6

Parameters from the Fourier decomposition.

# A 0 A 1 A 2 A 3 A 4 φ 21 φ 31 φ 41 N D m

RR0

V1 15.121(2) 0.337(2) 0.160(2) 0.110(2) 0.050(2) 4.045(12) 8.498(16) 6.581(22) 7 2.6
V2a 15.196(2) 0.320(2) 0.134(2) 0.107(2) 0.081(2) 4.005(11) 8.511(15) 6.668(16) 7 3.0
V3 15.118(2) 0.319(2) 0.152(2) 0.112(2) 0.059(2) 3.973(11) 8.413(13) 6.468(19) 7 4.9
V15 15.067(2) 0.344(2) 0.181(2) 0.122(1) 0.081(2) 3.987(7) 8.274(12) 6.431(14) 10 2.5

RR1

V14 15.176(2) 0.214(3) 0.030(3) 0.012(2) 0.010(2) 4.773(26) 2.673(137) 2.338(104) 6

Notes.A good decomposition could not be obtained for V19, due to poor phase coverage; the Fourier fit to V2 was also poor, and V16 is excluded because it shows signs of amplitude and period modulation due to Blazhko effects or non-radial pulsation. Numbers in parentheses are the 1-σ uncertainties on the last decimal place.

(a)

We provide our best-fit Fourier parameters but do not use the decomposition of V2 in the derivation of the cluster parameters, due to the sensitivity of the V2 parameters to the number of harmonics used.

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