VLA Observations of water maser emission associated with SVS 13

The young stellar object SVS 13 has been proposed as the powering source of the HH 7-11 objects. Recent observations have revealed that in the radio continuum (3.6-cm) the source is a binary separated by about 0.'3 in the east-west direction. We present Very Large Array observations, made in the highest angular resolution A configuration, of H(2)O maser emission toward this source. Our data show that the H(2)O spots appear to be segregated in two velocity groups: a group with radial velocity similar to that of the ambient cloud (V(LSR) similar or equal to 8 km s(-1)) that is associated with the western radio source, and a blueshifted (by similar to20 km s(-1)) velocity group that is associated with the eastern radio source. We discuss the possible implications of this observation.