ASTRONOMY AND ASTROPHYSICS Thermal H2O emission from the Herbig-Haro flow HH 54? (original) (raw)

The first detection of thermal water emission from a Herbig-Haro object is presented. The observations were performed with the Lws (Long Wavelength Spectrograph) aboard Iso (Infrared Space Observatory). Besides H 2 O, rotational lines Key words: stars: formation-ISM: molecules-ISM: jets and outflows-ISM: individual objects: HH 54-physical processes: shock waves-physical processes: radiative transfer ? Based on observations with Iso,anEsa project with instruments funded by Esa Member States (especially the PI countries: France, Germany, the Netherlands and the United Kingdom) and with the participation of Isas and Nasa (see: Kessler et al. 1996).