The line profiles generated in the bow shocks of a Herbig-Haro object

Details The line profiles generated in the bow shocks of a Herbig-Haro object The line profiles generated in the bow shocks of a Herbig-Haro object

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...288..338c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 288, Jan. 1, 1985, p. 338-341.

Statistics

Computation

62

Bow Waves, H Beta Line, Herbig-Haro Objects, Line Shape, Pre-Main Sequence Stars, Shock Waves, Computational Astrophysics, Emission Spectra, Hydrodynamic Equations

Scientific paper

In order to interpret recent observations of spatially resolved emission-line profiles in Herbig-Haro object HH 1, the position-dependent H-beta profile for a model of a bow shock around a spherical body has been calculated using an approximate theory which leads to a hyperbolic bow shock. A theoretical 'position-velocity' map with a shock velocity of 350 km/s is derived for H-beta using Cox's (1972) derivation of H-beta line flux in a plane shock geometry. The corresponding observational map agrees surprisingly well with the theoretical predictions. The observations show that, in spite of its 'condensation structure' HH 1 shows a 'position-velocity' map of a simple bow shock directed away from the Cohen-Schwartz star, as would be expected for an 'interstellar bullet' model.

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