Other
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..280p.318r&link_type=abstract
The Molecular Universe, Posters from the proceedings of the 280th Symposium of the International Astronomical Union held in Tole
Other
Scientific paper
The detection of very narrow SiO emission and the over-excitation of the ion fluid with respect to the neutral one, are possibly signatures of the magnetic precursor of C-shocks in young outflows. Since these features have only been observed towards the L1448-mm outflow, we recently carried out a survey to search for narrow SiO and ion over-excitation towards four other young outflows (L1448-IRS3, NGC1333, VLA1623 and IRAS20353). All of the outflows apart from IRAS20353 show differences between the ion and neutral fluids, and two of the outflows (L1448-IRS3 and NGC1333) also show narrow SiO emission, indicating that the magnetic precursor may be a common phenomenon. We aim to determine the physical conditions and extent of the magnetic precursor towards each outflow, which will be a useful constraint to shock models and understanding the physics of molecular outflows.
Jiménez-Serra Izaskun
Martín-Pintado Jesús
Roberts Jeffery J.
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