Free Access
Fig. 2.
Detection of a radio recombination line in emission at quantum level neff = 285, with a velocity centred on z = 1.12405 (z = 1.12355), originating from hydrogen (carbon). This is the average profile of a single line, effectively at 133 MHz, as a result of stacking 13 recombination lines in the spectrum of 3C 190.
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.