Free Access
Fig. 1

Hobby-Eberly Telescope LRS spectrum of M 31N 2008-12a (truncated at 7500 Å) taken on 20.34 Oct. 2012 UT, about two days after the 2012 eruption (M 31N 2012-10a).
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.