Open Access

Fig. 7.


Minimum brightness temperature Tb, min and maximum brightness temperature Tb, max as a function of (u, v)-distance. The values were estimated from the visibilities following Lobanov (2015). The solid (dashed) lines show the average Tb, min (Tb, max) in bins of 10  for RadioAstron (black) and MOJAVE (red), while the points show the individual data values with the same colour scheme. The dashed horizontal lines show Tb calculated from Gaussian modelfits (see Table 1). Tb, min and Tb, max provide a reasonable bracketing for the brightness temperature at least for the RadioAstron data.

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.