Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...259..668s&link_type=abstract
Astrophysical Journal, Part 1, vol. 259, Aug. 15, 1982, p. 668-676.
Astronomy and Astrophysics
Astronomy
56
Herbig-Haro Objects, Interstellar Gas, Molecular Clouds, Stellar Mass Ejection, Stellar Spectra, Stellar Winds, Astronomical Maps, Carbon Monoxide, Early Stars, Infrared Astronomy, Plasma Interactions, Red Shift
Scientific paper
High-velocity CO has been detected in the vicinity of the Herbig-Haro objects HH 24-27. These observations indicate that there are two sources of high-velocity outflow; one centered on an infrared source near HH 26, and the second centered roughly 2 arcmin south of HH 24. The redshifted and blueshifted wings in both sources are spatially separated suggesting that the high-velocity gas is due to energetic bipolar outflows from young stars embedded in the molecular cloud. The association of Herbig-Haro objects with regions of high-velocity gas suggests a common origin for both in the interaction of a stellar wind with the ambient molecular cloud. The mass loss rates implied by our observations, assuming that the rate of mass loss has been constant throughout the dynamical lifetime of the bipolar lobes, are roughly 10 to the -6th solar mass per year for both sources.
Edwards S. S.
Snell Ronald L.
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