Fig. 4.
Cumulative color excess E(B–V) computed by integration of the differential color excess along radial directions, from the Sun up to a distance of 300 pc. Isocontours derived from the SFD98 reddening map are superimposed. The comparison shows that all northern high-latitude arches seen at longitudes −150 ≤ 1 ≤ +40° and with E(B–V) ≥ 0.025 mag are closer than 300 pc (see text).
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