Fig. 2: Channel maps of the D2O emission compared with that of HDO. | Nature Astronomy

Fig. 2: Channel maps of the D2O emission compared with that of HDO.

From: Pristine ices in a planet-forming disk revealed by heavy water

Fig. 2

The velocity of each channel is indicated by the white text in the top left corner of each panel. The grey line indicates the emission above 3σ attributed to the HDO line at 225 GHz. The white contours indicate the 3σ and 4σ level for the emission of D2O and the neighbouring COMs.

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