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We carried out multiwavelength (0.7-5 cm), multiepoch (1994-2015) Very LargeArray (VLA) observations toward the region enclosing the bright far-IR sourcesFIR 3 (HOPS 370) and FIR 4 (HOPS 108) in OMC-2. We report the detection of 10radio sources, seven of them identified as young stellar objects. We image awell-collimated radio jet with a thermal free-free core (VLA 11) associatedwith the Class I intermediate-mass protostar HOPS 370. The jet presents severalknots (VLA 12N, 12C, 12S) of non-thermal radio emission (likely synchrotronfrom shock-accelerated relativistic electrons) at distances of ~7,500-12,500 aufrom the protostar, in a region where other shock tracers have been previouslyidentified. These knots are moving away from the HOPS 370 protostar at ~ 100km/s. The Class 0 protostar HOPS 108, which itself is detected as anindependent, kinematically decoupled radio source, falls in the path of thesenon-thermal radio knots. These results favor the previously proposed scenariowhere the formation of HOPS 108 has been triggered by the impact of the HOPS370 outflow with a dense clump. However, HOPS 108 presents a large propermotion velocity of ~ 30 km/s, similar to that of other runaway stars in Orion,whose origin would be puzzling within this scenario. Alternatively, an apparentproper motion could result because of changes in the position of the centroidof the source due to blending with nearby extended emission, variations in thesource shape, and /or opacity effects.

Star Formation Under the Outflow: The Discovery of a Non-Thermal Jet from OMC-2 FIR 3 and its Relationship to the Deeply Embedded FIR 4 Protostar