Open Access

Fig. 4


28SiO (2–1) opticaldepth map computed from the 28SiO/30SiO ratio assuming the solar isotopic ratio [28Si/30Si] = 29.8. The contours show the 10, 60, and 120σ levels of the integrated intensity map of the 28SiO, shown in Fig. 1. The primary beam of 56′′ is reported as a dotted black circle.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.