Bipolar outflows in dark clouds

Details Bipolar outflows in dark clouds Bipolar outflows in dark clouds

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...286..599g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 286, Nov. 15, 1984, p. 599-608.

Astronomy and Astrophysics

Astrophysics

169

Interstellar Gas, Molecular Clouds, Nebulae, Stellar Mass Ejection, Stellar Winds, Astronomical Maps, Carbon Monoxide, Early Stars, Molecular Spectra, Stellar Evolution

Scientific paper

High resolution maps of C-12O regions were obtained of molecular outflows in placental gas around the young stars L1455, L723, L1529, and B335. Attention was directed to the J = 1 yields 0 transition of the C-12O molecules. Bipolar, highly collimated flows were centered low luminosity, far-IR objects in the B335 and L723 clouds. L1455 displayed two distinct well-collimated molecular jets separated by 6.5 arcmin and having separate centers. The high velocities were associated with acceleration of the ambient molecular gas by stellar winds emitted by embedded objects. The outflows had kinetic energies of 0.2-3 x 10 to the 45th ergs and mass loss rates of 0.8-10 millionth solar mass per year. The accelerated gas was far from the driving source in B335 and L723, implying that a stellar wind swept out the molecular gas and produced local cavities.

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