Electron pressure as a function of electron temperature of the −47 km s−1 velocity component toward Cas A. The red solid line shows the upper limit of a pressure-broadened line width. Shaded regions represent 1σ and 3σ uncertainty. The green shaded regions show the line-width constraints from the combined Doppler, pressure, and radiation broadening terms for Tr, 100 = 1400 K (S17). The orange shaded regions show the physical properties of the HRRLs constrained from modeling the integrated optical depth. The yellow shaded regions show the physical properties of the CRRLs constrained from modeling the integrated optical depth (O17). This plot shows the distinction between the HRRLs and CRRLs, where HRRLs arise from slightly colder, denser regions in the cloud.
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.