Left panel: 1.3 mm continuum emission observed in L1498 (Tafalla et al. 2004). Contour levels start at 2 mJy per 11′′ beam and increase by steps of 2 mJy per 11′′ beam. Middle panel: C18O (1–0) integrated intensity. Contour levels start at 0.2 K km s-1 (6.2σ) and increase by steps of 0.2 K km s-1. Right panel: H13CO+ (1–0) integrated intensity. Levels start at 0.1 K km s-1 (5.9σ) and increase by steps of 0.1 K km s-1. In each panel the spatial resolution of the map is indicated by a filled circle.
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