Molecule formation in fast neutral winds from protostars

Details Molecule formation in fast neutral winds from protostars Molecule formation in fast neutral winds from protostars

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...336l..29g&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 336, Jan. 1, 1989, p. L29-L31. Research supported by NASA and NSF

Astronomy and Astrophysics

Astrophysics

44

Molecular Flow, Pre-Main Sequence Stars, Protostars, Star Formation, Stellar Envelopes, Stellar Winds, Carbon Monoxide, Hydrogen Atoms, Silicon Oxides, Stellar Mass Ejection, Stellar Temperature

Scientific paper

A time-dependent chemical model is used to analyze the processes generating and destroying molecules in very high velocity winds from low-mass protostars. CO and SiO are found to be generated in significant quantities despite the persistence of H in atomic form, consistently with recent protostellar wind detections of CO and H I at velocities in excess of 100 km/sec. A moderate mass-loss rate, in conjunction with a temperature distribution that decreases rather rapidly with distance from the protostar, are the conditions for substantial molecule formation.

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