A Variable-Velocity, Precessing Jet Model for HH 32

Details A Variable-Velocity, Precessing Jet Model for HH 32 A Variable-Velocity, Precessing Jet Model for HH 32

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aj....127.1081r&link_type=abstract

The Astronomical Journal, Volume 127, Issue 2, pp. 1081-1088.

Astronomy and Astrophysics

Astronomy

14

Ism: Herbig-Haro Objects, Ism: Individual: Alphanumeric: Hh 32, Ism: Jets And Outflows, Ism: Kinematics And Dynamics, Shock Waves

Scientific paper

HH 32 has a bright, strongly redshifted lobe with a system of scattered condensations. We propose that these condensations correspond to internal working surfaces in a variable ejection velocity, precessing jet. From a three-dimensional numerical simulation, we obtain predictions of [O II] λ3726+λ3729, [O III] λ5007, [O I] λ6300, Hα, [N II] λ6583, and [S II] λ6716+λ6731 intensity maps, for an orientation angle of ~70° between the outflow axis and the plane of the sky (as appropriate for HH 32). We also obtain predictions of radial velocity channel maps. We then compare these predictions with previously published observations of HH 32 and discuss the strengths and weaknesses of the model.

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