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Fig. 3

image

RVs of the Hα features. The right panels show observations obtained at TCO during the last season in detail. RVs of the red peak, the violet peak, the central depression, wing, and humps are shown from top to bottom. Parabolic fits to the RV variations of the humps detected during two seasons are shown by the solid lines with arrows. The vertical lines indicate the same epochs as in Fig. 2.

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