Fig. 2

IRAM 30 m spectrum of the HCN (J = 1 → 0) emission in V4334 Sgr (Sakurai’s object). The width of each channel is 20 km s-1. The dotted vertical line corresponds to the systemic velocity of the source, vsys = 125 km s-1 (Duerbeck et al. 1997). The flux density in the right axis was calculated using the corresponding value of Γ shown in Table 1.
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.