The molecular outflow and CO bullets in HH111

J. Cernicharo , R. Neri , Bo Reipurth
Instituto de Estructura de la Materia, Dpto. Fısica Molecular, Serrano 123, 28006 Madrid, Spain
Institut de Radio Astronomie Millimétrique (IRAM), 300 Rue de la Piscine, F-38406 Saint Martin d'Hères, France
European Southern Observatory, Casilla 19001, Santiago 19, Chile
Abstract: We present high angular resolution observations of the molecular outflow associated with the optical jet and HH objects of the HH111 system. Interferometric observations in the CO J=2-1 and J=1-0 lines of the high velocity bullets associated with HH111 are presented for the first time. The molecular gas in these high velocity clumps has moderate kinetic temperature and a mass of a few 10 M per bullet. We favor the view that HH jets and CO bullets, which represent different manifestations of the same physical phenomena, are driving the low-velocity molecular outflow (Fig. 2.)

 

 

Figure 2: Interferometric maps of the J=1-0 CO emission taken with the PdBI. The maps result from a mosaic of overlapping 5 fields covering 120". The HPBW is 2.5"x3.5" and is indicated in the lower-right panel. Zero spacing data from the 30-m has been merged with the PdBI data. The thick line in each panel indicates the orientation of the HH111 optical jet.