Free Access

Fig. 10

image

Left: ratio of the total C+ column density to that of the total gas column measured by adding HI (from 21cm data) and H2 (derived from CH and HF) as a function of Galacto-centric radius. The symbol size is proportional to the fraction of gas in molecular form ranging from ~0.1 to ~0.8 for the velocity intervals considered here, with each sight-line plotted with a different symbol. The weighted average (1.5 × 10-4) is indicated with a dashed line and the median value (1.25 × 10-4) with a dotted line. Right panel: comparison of the Herschel data (black symbols with source name) with the FUV absorption data from Parvathi et al. (2012) (gray dots with error bars). The gas-phase carbon abundance is plotted as a function of the logarithm of average gas density log 10( ⟨ n(H) ⟩ ) = log 10(Ntot(H) /L).

This figure is made of several images, please see below:

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.