Spectra of the 13CS line detected toward the continuum peak of core #3 (in blue with a 0.02 Jy beam−1 offset) and core #6 (in red), before (panel a) and after (panel c) subtraction of their parental filament and outflow emission (panel b). Black curves are the Gaussian fits used to measure the line widths of the cores: ΔV13CS = 4.3 km s−1 and 3.7 km s−1 for core #3, ΔV13CS = 3.5 km s−1 and 3.1 km s−1 for core #6 before and after background subtraction, respectively.
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