The environment of low mass non-star-forming dense cores

Details The environment of low mass non-star-forming dense cores The environment of low mass non-star-forming dense cores

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pcim.conf..195f&link_type=abstract

The Physics and Chemistry of the Interstellar Medium, Proceedings of the 3rd Cologne-Zermatt Symposium, held in Zermatt, Septemb

Physics

Scientific paper

A conspicuous set of long and narrow filaments, tracing line-wing emission, has been discovered in the environment of a low mass dense core. The large intensities of the filaments in the 12 CO J = 4-3 and J = 3-2 lines relative to those of the lower twCO rotational transitions and their large observed HCO ^+ abundances are marginally consistent with the emission of dense and cold gas in steady-state chemical equilibrium. Alternatively, HCO ^+ might have formed in the hot dissipative structures of the supersonic turbulence surrounding the core and the observed filaments, still warm and diluted gas, would be the result of partial subsequent isobaric cooling.

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