CEA    Saclay    SACM    SAp    SPhN    SPP    webmail : intra -  extra     

Institut de Recherche sur les Lois Fondamentales de l'Univers

Résumé du preprint DAPNIA/SAp/96-26

SAp/96-26
Discovery of a jet emanating from the protostar HH24 MMS
S. Bontemps, D.Ward-Thompson, P. Andre
Abstract :
========

We report the results of new near-IR, radio continuum, and CO(3-2) observations of the immediate 
surroundings of the strong submillimetre dust source HH24 MMS. Our near-IR imaging reveals that a 
short jet of shocked molecular hydrogen is closely associated with the submm clump. The new 3.6 cm
map shows that at least part of the radio emission is extended, on a scale consistent with the
spatial extension of the near-IR jet. We interpret this elongated centimetre emission as free-free
radiation from the shock-ionized portion of the jet. Although our CO(3-2) data do not have enough
angular resolution to resolve a bipolar out ow in this complex region, they demonstrate that
high-velocity molecular gas is associated with HH24 MMS. Altogether, these results support our 
earlier claim that the HH24 MMS clump contains a very young Class 0 protostar.