THE AMMONIA CORE IN L723 - HOT-SPOTS AT THE CENTER OF THE QUADRUPOLARMOLECULAR OUTFLOW

We present the results of VLA NH3 and H2O observations, as well as Hay stack (CO)-C-13, (CO)-O-18, and H2O observations toward the center of the peculiar quadrupolar molecular outflow in L723. In NH3 we detected a high-density structure, similar to 17 (similar to 0.15 pc) long, el ongated in roughly the east-west direction, with the radio continuum s ource VLA 2 located near its center. We find evidence in the ammonia m aps for heating and line broadening toward VLA 2, confirming that this source is driving the large lobe pair of the quadrupolar molecular ou tflow. Additionally, H2O maser emission is detected toward this radio continuum source. A second, very compact ammonia ''hot spot'' is obser ved 10'' west of VLA 2. This ''hot spot'' may be heated by a deeply em bedded (still undetected) young stellar object that could be the drivi ng source of the more compact pair of molecular outflow lobes. No ammo nia emission is detected at the position of the source VLA 1, which is probably a line-of-sight source.