Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991rmxaa..22..265r&link_type=abstract
Revista Mexicana de Astronomia y Astrofisica (ISSN 0185-1101), vol. 22, Oct. 1991, p. 265-273. Research supported by NSERC.
Astronomy and Astrophysics
Astronomy
20
Astronomical Models, Bow Waves, Herbig-Haro Objects, Mathematical Models, Recombination Reactions, Shock Waves, Emission Spectra, H Alpha Line, Jet Flow, Line Spectra, Scaling Laws, Spatial Resolution
Scientific paper
The H alpha/forbidden S II angular offsets in two objects are studied to determine whether the recombination regions behind the objects' bowshocks are spatially resolved in the observations. The Herbig-Haro objects, HH 34 and HH 111, demonstrate angular offsets of this type at 0.4-1.4 arcsec, which correspond to physical separations of (2-9) x 10 exp 15 cm. The spatial offsets are examined in 1D numerical shock models in which the spatial offsets between different emission lines are evaluated. Analytic scaling laws are computed which can reproduce the numerical results for comparison with the observations. If the shock velocity is about 35 km/s, the observations agree with model predictions for the estimated preshock density of about 10/cu cm. The paper concludes that the observations of HH-34 and HH-111 do indicate the spatial resolution corresponding to shock-wave recombination regions.
Binette Luc
Raga Alejandro C.
No associations
LandOfFree
Models of spatially resolved recombination regions in H-H objects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Models of spatially resolved recombination regions in H-H objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Models of spatially resolved recombination regions in H-H objects will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1877043