Abstract
Spatially resolved profiles of the [0 III] 5007-A line have been obtained in the vicinity of the Trapezium group of stars in the Orion nebula with the Manchester echelle spectrometer on the William Herschel and Isaac Newton telescopes. Receding, collimated outflows are found in the vicinity of the compact interstellar knots LV 1, 2, 3 and 5. These flows have radial velocities of up to 120 km s −1 with respect to the (local) systemic radial velocity (V HEL =26 km s −1 ). An isolated, highly ionized knot is found with a radial velocity of 81 km s −1 , as is a receding, extended (7 arcsec across) feature which is composed of two sheets with positive radial velocities of 94 and 134 km s −1 respectively (again with respect to the systemic radial velocity)
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