Collimation of Astrophysical Jets: The Proto-Planetary Nebula He 3-1475

Details Collimation of Astrophysical Jets: The Proto-Planetary Nebula He 3-1475 Collimation of Astrophysical Jets: The Proto-Planetary Nebula He 3-1475

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...482l..97b&link_type=abstract

Astrophysical Journal Letters v.482, p.L97

Astronomy and Astrophysics

Astronomy

64

Ism: Planetary Nebulae: Individual Alphanumeric: He 3-, 475, Ism: Jets And Outflows, Hydrodynamics, Shock Waves

Scientific paper

The proto--planetary nebula He 3-1475 was imaged in the [N II] lambda 6584 line with the Wide Field Planetary Camera 2 on board the Hubble Space Telescope. This image has revealed what appear to be large-scale flows being collimated into narrow bipolar jets. This is a unique object: we may be observing the actual collimation process of an astrophysical jet. Analytical models and hydrodynamical simulations suggest that the jet in He 3-1475 may be produced by purely hydrodynamical means, through focusing of a weakly collimated bipolar outflow into jets by oblique radiative shocks.

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