Fig. 5

Mean extinction values in the Johnson V filter, AV, from 2-D extinction maps based on DSS star counts (Dobashi et al. 2005, red long-dashed line), 2MASS star counts (Rowles & Froebrich 2009, green short-dashed line), and COBE/DIRBE with IRAS/ISSA data (Schlegel et al. 1998, blue dotted line). The distance-dependent calibration of Arenou et al. (1992) based on optical photometry is shown as a thick gray line. The uncertainty range ( ± 1σ) is shown in all cases. The extinction values for various lines of sight within the field based on the Besançon Galactic model and 2MASS data (Marshall et al. 2006) are shown as filled dots (AKs/AV = 0.115 was assumed).
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.