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Fig. A.2.

image

J042442 FEROS spectra covering Hα emission wavelengths. The dashed line highlights the predicted position of the Hα emission line given the measured RVs of the M5.5 and M5.7 BC pair (black lines–components indistinguishable) and the M4.5 primary (red line). Unlike J053018 and J201633, J042442 displays strong Hα emission at the predicted position given the measured RV of the primary. Hα emission is tentatively detected given the measured RV of one of the BC components and undetected given the other. This is a reasonable given the brightness contrast between the primary and the BC pair and the apparent RV separations.

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