Radiative bow shock models of Herbig-Haro objects

Journal Article · Fri May 01 04:00:00 EDT 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165204· OSTI ID:6210599

Hartigan, P; Raymond, J; Hartmann, L

The bow-shock models of HH objects presently constructed from a collection of 43 radiative-planar-shock models are used to predict the line ratios and line profiles expected from HH objects. It is found that a radiating-bow-shock model formed around a 'bullet' of dense gas plowing into the ambient medium accounts for existing observations sufficiently well to constitute a unifying model. For particular bow-shock orientations, double-peaked profiles are predicted in spatially unresolved spectra. A simple analytic formula is presented that can be used to estimate the shock velocity and bow-shock orientation from a single high-resolution observation of a low-excitation line. 63 references.

• Research Organization: Arizona Univ., Tucson; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
• OSTI ID: 6210599
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 316; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640105 -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANALYTICAL SOLUTION
COSMIC GASES
ENERGY TRANSFER
FLUIDS
GASES
MATHEMATICAL MODELS
NEBULAE
RADIAL VELOCITY
SHOCK WAVES
STAR EVOLUTION
STAR MODELS
VELOCITY