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Table 3

Radial velocity measurements with respect to the stellar rest frame of sodium and Hα absorption lines within the pulsation phase.

Phase Line velocity (km s−1)
 
φ Na (blue) Na (red) Hα (abs)
0.874 +25.0 +45.4 +46.9
0.892 +10.1 +47.8 +44.9
0.911 −11.5 +50.1 +46.9
0.943 −24.1 +49.8 −58.5a +43.3a
0.991 −31.3 +49.5 −60.6a +48.5a
1.027 −25.8 +48.6 −63.2a +49.8a
1.074 −24.3 +49.7 −52.3
1.202 −13.4 +48.8 −34.9
1.302 −2.7 +50.5 −21.1
1.320 +0.1 +48.5 −18.8
1.401 +6.7 +49.0 −7.2
1.455 +10.2 +49.6 −0.2
1.473 +13.6 +50.8 +2.9
1.498 +14.1 +48.5 +5.7
1.581 +20.9 +49.3 +19.1
1.600 +24.1 +49.8 +23.3
1.618 +34.9b +27.8
1.754 +33.2b +42.5
1.810 +37.1b +41.9

Notes. The mean uncertainty computed from line center measurements is ± 0.6 km s−1. (a) Hα line doubling. (b)Na single line.

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