Fig. A.7

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Dynamic spectrum of 6.7 GHz methanol maser emission of G24. The velocity is measured with respect to the local standard of rest. The vertical bars on the bottom ordinate correspond to the dates of the observed spectra. The white dashed vertical lines indicate the epochs of VLBI observations. There were no observations in the periods 56387<MJD<57482 and 58967<MJD<59153.
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