Statistics – Computation
Scientific paper
Nov 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...265..767r&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 265, no. 2, p. 767-770.
Statistics
Computation
Early Stars, Herbig-Haro Objects, Interstellar Extinction, Stellar Mass Ejection, Computational Astrophysics, Molecular Clouds, Stellar Magnetic Fields, Stellar Models
Scientific paper
Tentative observational evidence suggests that systems of outflows from young stars might show outflow axes alignments. The 'preferred outflow direction' might correspond to the direction of the local magnetic field. However, the high extinction of the environment around the stellar outflows introduces an effect that complicates the interpretation of such alignments. Optical searches of Herbig-Haro objects tend to detect outflows pointing outwards from the molecular clouds (with which they are associated), towards regions of lower extinction. This results in a 'preferred outflow direction' for the optically detected outflows. Though this effect is probably not responsible for all of the reported observations of outflow alignments, it does introduce important modifications in the interpretation of the statistics of outflow alignment observations.
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