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This article has an erratum: [https://doi.org/10.1051/0004-6361/201424267e]


Fig. 2

image

Example H2O spectra for three Class 0 and two Class I sources (names in red and blue respectively). All spectra have been recentred so that the source velocity is at 0 km s-1 and scaled by the number in the top-right corner of each panel. Some spectra have also been resampled to a lower velocity resolution for ease of comparison. The green line indicates the baseline.

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