Free Access

Fig. 24

thumbnail

Comparison of narrow line profiles from the first NOT observation, JD 55 288, showing the narrow component before the development of the extended wings (day 23 after outburst). Note that the central peak in the Na I D absorption line coincided with the peak of the other emission lines, suggesting that this was also a superimposed chromospheric emission component. Top: [Ca II] 7291 Å (solid), [O I] 6300 Å (dash), [Ni II] 6666 Å (dot-dot-dash). Bottom: Na I 5889 Å (solid), 5895 Å (dash) for comparison.

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.