[OI]_63μm spectrum at the original resolution (6.̋6) of the SOFIA data extracted from the strongest continuum position (0″, + 3″ from , ). The left vertical dotted line shows the absorption features at 2–15 km s^-1 that are due to the source itself and to a cold cloud along the line of sight at ν_LSR = 13.7 km s^-1. The right dotted vertical line shows an additional line-of-sight absorption feature.