Kinematical and hydrodynamical study of the HH 32 complex

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Abstract

Observations of condensations A, B, C, and D of the HH 32 complex, obtained at 649-679 nm through a 2.2 x 117-arcsec slit at eight position angles using a two-stage magnetically focused image-intensifier tube and 90-cm-focal-length f/3 camera in the coude spectrograph on the 2.1-m Calar Alto telescope during September 1983, are reported. The data are presented in position-velocity contour diagrams, intensity/velocity profiles, radial-velocity and line-intensity distributions, and maps. The four condensations are found to appear as separate entities with similar internal velocity fields, high-velocity components located 0.6-0.7 arcsec closer to the central star than the low-velocity components, and electron densities about constant as functions of radial velocity-findings consistent with a bow shock with axis 20 deg from the line of sight.

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