Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....95..543r&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 95, Feb. 1988, p. 543-552.
Astronomy and Astrophysics
Astronomy
29
Emission Spectra, H Alpha Line, Herbig-Haro Objects, Plasma Jets, Spatial Distribution, Stellar Mass Ejection, Charge Coupled Devices, Stellar Models, Stellar Spectrophotometry
Scientific paper
The spatial distribution of the emision-line spectrum of the jet associated with the Herbig-Haro object HH 34 was studied using narrowband CCD images. The study, restricted to the H-alpha, S II 6717, and S II 6731 emission lines, yielded data from which it was possible to determine the spatial distribution of the emission perpendicular to the axis of the jet. The results have also confirmed the existence of several 'condensations' along the jet. The brightest region of the jet was found to have a FWHM of approximately (0.6 + or - 0.1) arcsec; there is some indication that the highest intensity of the jet is at the same time the region of maximum collimation. The opening angle of the jet was found to increase for distances greater than 15-20 arcsec from the source. The results obtained in this study are interpreted on the basis of current theoretical models of stellar jets.
Mateo Mario
Raga Alejandro C.
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