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Fig. 4

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Observed Yebes 40 m spectra toward IRAS 16293E shown in black and Gaussian fits as blue curves. The vertical blue lines are centered at vlsr of 3.8 km/s, and the gray horizontal lines show the 1σ noise (RMS) level. From top left to bottom right: CH3OH spectra offset by 1000 mK, CH2DOH spectrum, CH3CHO spectra offset by 100 mK, HCOOCH3 spectra offset by 20 mK, and CH3OCH3 spectra offset by 30 mK.

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