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Recent Hubble Space Telescope (HST) observations of the extragalactic radiosource Centaurus A (Cen A) display a young stellar population around thesouthwest tip of the inner filament 8.5 kpc from the Cen A galactic center,with ages in the range of 1-3 Myr. Crockett et al. (2012) argue that thetransverse bow shock of the Cen A jet triggered this star formation as itimpacted dense molecular cores of clouds in the filament. To test thishypothesis, we perform three-dimensional numerical simulations of induced starformation by the jet bow shock in the inner filament of Cen A, using apositivity preserving WENO method to solve the equations of gas dynamics withradiative cooling. We find that star clusters form inside a bow-shockedmolecular cloud when the maximum initial density of the cloud is > 40 H2molecules/cm^3. In a typical molecular cloud of mass 10^6 M_sun and diameter200 pc, approximately 20 star clusters of mass 10^4 M_sun are formed, matchingthe HST images.

Numerical Simulation of Star Formation by the Bow Shock of the Centaurus A Jet