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Fig. 1

image

Filtered column density map, δNH, derived from Planck data of interstellar dust emission. The Gould Belt is qualitatively represented by the two white dashed lines. Within the Gould Belt some bright and close-by molecular clouds can be identified (<600 pc from the Sun): Taurus, Perseus, and California in the extreme east (A); Cepheus and Polaris in the northeast (B); Ophiuchus above the Galactic center (C); Musca and Chamaeleon in the southwest (D); Orion in the extreme west (E). A Galactic coordinates grid centered in (l, b) = (0°,0°) is added with steps of 30° both in longitude and latitude.

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