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Fig. 6

image

Phase-folded curves (using the photospheric absorption line period and phase, which is nearly identical to the He II 4686 Å line period and phase) for several of the observed NC of lines. We note that two 7.417d periods are plotted for clarity. The dotted line represents the RV curve measured for the photospheric absorption lines (K14).

This figure is made of several images, please see below:

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