Dynamical consequences of a stellar wind in Herbig-Haro objects

Details Dynamical consequences of a stellar wind in Herbig-Haro objects Dynamical consequences of a stellar wind in Herbig-Haro objects

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...236..543s&link_type=abstract

Astrophysical Journal, Part 1, vol. 236, Mar. 1, 1980, p. 543-548. Research supported by the University of Missouri

Other

72

Herbig-Haro Objects, Main Sequence Stars, Radial Velocity, Shock Waves, Stellar Mass Ejection, Stellar Spectrophotometry, Stellar Winds, Emission Spectra, Line Spectra, Stellar Evolution

Scientific paper

New spectrophotometric and radial-velocity data are presented for a number of southern Herbig-Haro objects. Combined with data obtained earlier on other objects, it has been possible to show an inverse correlation between the modulus of the radial velocity and either the shock pressure or the degree of excitation of the shock. This is shown to be the result of acceleration of shocked cloudlets in a strong pre-main-sequence stellar wind. For the most energetic of the Herbig-Haro objects, stellar mass-loss rates in the range 10 to the -6th to 10 to the -5th solar masses/yr are required to excite the nebulae.

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