Molecular outflows driven by cores in the central region of the W43-MM1 ridge. Outflows detected at high velocity (a) are shown in detail with their low- and high-velocity components in zooms (b), (c), and (d). Contours of the integrated blue- and red-shifted emission of the CO(2–1) line wings are overlaid on the 1.3-mm continuum emission of the 12-m array (gray scale). For blue lobes, emission is integrated over 42− 64 km s−1 (HV, blue contours) and 82−88 km s−1 (LV, cyan contours). For red lobes, emission is integrated over 108−119 km s−1 (LV, orange contours) and 128−158 km s−1 (HV, red contours). For blue lobes, contours are 7, 15, 30 to 230 by steps of 40 (HV), and 7, 15 to 120 by steps of 15 (LV), in units of σ = 20 mJy beam−1 km s−1. For red lobes, contours are 10, 20 to 160 by steps of 20, in units of σLV, R = 37 mJy beam−1 km s−1 (LV) and 7, 15, 30 to 280 by steps of 50, in units of σ (HV). Green ellipses locate the W43-MM1 cores, arrows (sometimes broken) indicate the direction of their outflows, dashed line outlines the best developed outflow cavities. Knots of the blue lobe of core #8 are labelled B1 to B7 in zoom (b) (the first knot B0 is not visible on this integrated map). Ellipses in the lower corners represent the angular resolutions of the images, and a scale bar is shown in (a) and (b) to indicate the size in physical units (same physical units in c, d and Fig. 4 than in b). Some isolated features, like those outlined by the blue contours below the Z2 box in a, correspond to diffuse gas not associated with the W43-MM1 outflows.
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