A MOLECULAR JET AND BOW SHOCK IN THE LOW-MASS PROTOSTELLAR BINARY NGC-1333-IRAS2

We present new molecular spectral line and (sub)millimetre continuum o bservations of the IRAS2 region of NGC1333. Our data locates the (sub) millimetre counterpart of the IRAS source. This source is located at t he centre of symmetry of two bipolar molecular outflows. The older 'fo ssil' outflow extends approximately north-south while a younger, highl y collimated, jet-like east-west outflow terminates in a well-defined molecular bow shock. Multi-transition methanol line data suggest that the molecular bow shock is very cold and that shock interactions have greatly enhanced the methanol abundance. This source provides a striki ng example of a molecular counterpart to the frequently observed optic al Herbig-Haro type bow shock structures and provides a valuable speci men for detailed shock chemistry studies.