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Fig. 3

image

Top: same as Fig. 2 but for o-CH2 observations made using the Onsala 20 m telescope toward the Orion KL/S region. Blue circles represent the beam size of the Onsala 20 m telescope centred at the different pointing positions and the dotted white circle marks the KP beam at the Orion-KL and Orion S positions marked in Fig. 2. Bottom: stacked and averaged o-CH2 spectra obtained by combining the Orion KL/S pointing positions (2), (3), (4), and (5), taken three at a time. The line fits are scaled using the line parameters obtained toward Orion KL/S positions (1) and (6).

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