Fig. 8
Sample emission profiles in V1309 Sco. They represent the entire emission region. Top panel: profiles of rotational emission of SiO 8–7 and CO 3–2 observed in January–April 2016; and of CO 2–1 observed in July 2015. Middle and bottom panels: molecular profiles observed in 2016 are compared to sample profiles observed in May–July 2016 in the visual. The profile of K I is affected by narrow telluric absorption features (chiefly in the red wing). The correction to the heliocentric velocity is –9.775 km s−1.
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