Fig. B.1
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Spectra of the observed transitions, extracted at the dust peak, the CH3OH peak, the CH3CCH peak, and the c-C3H2 peak of L1544. The extraction locations of the spectra, as well as the telescope beam used as aperture, are indicated in Fig. 1. The horizontal line indicates the 3σ confidence level, and the vertical line indicates the systemic velocity of the source.
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