Statistics – Computation
Scientific paper
Oct 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...321..846c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 321, Oct. 15, 1987, p. 846-854. Research supported by the University of Cal
Statistics
Computation
28
Electron Density (Concentration), Emission Spectra, Near Infrared Radiation, Radio Jets (Astronomy), Stellar Activity, Stellar Luminosity, Balmer Series, Computational Astrophysics, H Alpha Line, Light Scattering, Radial Velocity, Signal To Noise Ratios
Scientific paper
Spatially resolved spectral scans were obtained for four Herbig-Haro jets emanating from low-luminosity premain-sequence stars. There appears to be a general tendency for the excitation and electron density to diminish along these jets. For three jets, the electron density dependence is close to 1/r. HH 30's scattered stellar continuum showed much weaker Fe II lines in 1985 than in 1979, indicative of variable stellar activity. The most distant knot in HH 34's jet has the lowest excitation of any known HH object, with S II-line/H-alpha = 12.
Cohen Martin
Jones Burton F.
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