The Three-dimensional Structure of a Radiative, Cosmic Bullet Flow

Details The Three-dimensional Structure of a Radiative, Cosmic Bullet Flow The Three-dimensional Structure of a Radiative, Cosmic Bullet Flow

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...668..310r&link_type=abstract

The Astrophysical Journal, Volume 668, Issue 1, pp. 310-315.

Astronomy and Astrophysics

Astronomy

13

Ism: Herbig-Haro Objects, Ism: Jets And Outflows, Ism: Kinematics And Dynamics, Ism: Planetary Nebulae: General

Scientific paper

We have carried out an axisymmetric and a three-dimensional (3D) numerical simulation of a radiative, interstellar bullet flow with the same physical and numerical setup. We find that while some of the main features of the axisymmetric flow are reproduced in the 3D simulation (e.g., the production of ``vortex shedding events'' and the fragmentation of the head of the bullet flow), strong deviations from axisymmetry occur in the 3D flow. The main difference between the axisymmetric and the 3D flows is that the on-axis, high-velocity condensation that is characteristic of the axisymmetric flow does not appear in the 3D bullet flow.

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