2003A&A...411..437G

A new instrument, ``GriF'', has been used on the Canada-France-Hawaii Telescope to record spatially and velocity resolved images, in the H₂ v=1-0 S(1) line in the K-band, of a 1'x1' field in the core of the Orion Molecular Cloud, OMC1. Using the PUEO adaptive optics system combined with Fabry-Perot interferometry, diffraction limited spatial resolution of 0.15" and velocity discrimination of ∼1km/s has been achieved. These data yield graphic images of shocks in OMC 1, presenting a level of detail which has not previously been attained. Observed structures suggest that a significant fraction of the regions strongly emitting in H₂ do so through local, internal shocks, associated with star formation within the clumps of gas involved. Thus the core of OMC 1 is revealed for the first time as a region which contains a number of developed protostars.