A high-velocity molecular outflow from the G9.62+0.19 star-forming region

We have observed the G9.62+0.19 region of massive star formation with the I RAM 30 m single-dish telescope in the HCO+ (1-0), and SiO(4(3)-3(2)), and S iO(5-4) spectral lines, and with the IRAM Plateau de Bure interferometer in the 3 mm continuum and the HCO+ (1-0) and CH3OH(15(3)-14(4)) A(-) spectral lines. We detect a high-velocity molecular ouflow with a total velocity ex tent of at least 60 km s(-1). The orientation of the outflow axis is very c lose to the line of sight. Our estimates of the mass and energetics of the outflowing gas indicate that a massive object must be responsible for drivi ng the flow, with the hot core region G9.62+0.19 F as the most likely candi date. We also detect emission from hot methanol coincident with the positio n of continuum component E, but CH3OH(15(3)-14(4)) A(-) is not detected at the position of the G9.62+0.19 F hot core region.