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Fig. 3
CH3OH lines observed in WBS spectra of comets 103P/Hartley 2 and C/2009 P1 (Garradd) observed on 30 October 2010 and 22 February 2012, respectively. The spectral resolution is 1 MHz (0.24 km s-1). The horizontal axis is the Doppler velocity based on the rest frequency of the transition.
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