Fig. 4.
Expected group velocity according to Eq. (26) expressed in terms of Mach number for values of the stellar model used in Sect. 4. Contour lines mark regions of different typical Mach numbers. There are no IGWs for frequencies above the BVF (white area). Instead, one expects the excitation of sound waves only which have Mach numbers of unity.
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.