Physics
Scientific paper
Jul 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.460..381c&link_type=abstract
The Promise of the Herschel Space Observatory. Eds. G.L. Pilbratt, J. Cernicharo, A.M. Heras, T. Prusti, & R. Harris. ESA-SP 460
Physics
Ism: Clouds, Ism: Jets And Outflows, Ism: Molecules, Radio Lines: Ism
Scientific paper
We review some aspects of our research activity, based on ground-based mm-wavelengths and ISO observations, which have been addressed in the effort to investigate the evolution of the molecular outflows associated with star forming regions. The approach given by the study of the shock chemistry has been used, observing emission due to molecular species as e.g. SiO, H2O, OH, H2S, SO, SO2. The results suggest criteria based on line profiles and abundance ratios which allow to get the evolutionary stage of the young stellar objects driving the mass loss process, and call for the study of emission due to high excitation transitions of Si-, O- and S-bearing molecules which occurs at the FIRST frequencies. The high spectral resolution given by HIFI as well as the PACS and SPIRE capability to obtain imaging spectroscopy of quite extended star forming regions represent an unique opportunity to investigate the high temperature chemistry, tracing the high excitation conditions associated with the region closely linked with the shock front.
Bachiller Rafael
Benedettini Milena
Caselli Paola
Codella Claudio
Giannini Teresa
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