Abstract
Molecular hydrogen emission lines have been detected in six Herbig-Haro objects. The line intensities suggest tha the H/sub 2/ emission arises in a moderate-density, shock-heated gas, consistent with evidence for a similar origin of the visible emission-line spectra in Herbig-Haro objects. Indirect arguments indicate that the typical H/sub 2/ line widths are less than 70 km s/sup -1/ and that typical helicentric radial velocities are no more than 30 km s/sup -1/ in magnitude.
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