Examples of photon trajectories. The left panel shows a photon escaping through the random walk from a static medium with (NHI,cl,fc) = (1020 cm-2, 100). In the central panel the photon escapes in an excursion [(NHI,cl,fc) = (1017 cm-2, 100)] after a random walk and in the right panel nearly directly through excursion/single flight due to movement of the clumps [( NHI,cl,fc,σcl) = (1017 cm-2, 100, 100 km s-1)]. In each panel, the escape frequency x is shown along with the total number of scatterings n, and the distance traveled d. In addition, the color coding represents the frequency of the photon (truncated at ± 5). An animated version of this figure is available online.
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.