Fig.2
Upper left panel: column density derived from the Hi data at 21 cm (Hartmann & Burton 1997). Upper right panel: 12CO (J = 1 → 0) velocity integrated emission line (Dame et al. 2001). Lower left panel: 13CO J = 1 → 0 velocity integrated emission line (Narayanan et al. 2008; Goldsmith et al. 2008). Lower right panel: NIR extinction using 2MASS (Pineda et al. 2010). The 13CO and NIR extinction maps are smoothed at the angular resolution of the 143 GHz HFI band (FWHM: 7.08′).
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