Numerical Simulations of Extragalactic Jets in an Inhomogeneous Environment

  • Steve Higgins
  • Tim O’Brien
  • James Dunlop
Conference paper
Part of the International Astronomical Union book series (IAUS, volume 175)


We have simulated the passage of an extragalactic jet through a medium containing an ensemble of cool, dense clouds. The hydrodynamic code uses the second-order Godunov method of Falle (Falle 1991, van Leer 1979) in three-dimensional, cartesian coordinates. We have estimated the synchrotron emissivity and used this to produce synthetic radio maps. The results are reminiscent of structures seen in many extragalactic radio sources.


Mach Number Radio Emission Ambient Medium Density Contrast Radio Galaxy 
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  1. Crawford & Fabian (1993) MNRAS, 260, pp.Ll5Google Scholar
  2. Dunlop, J.S. & Peacock, J.A. (1993) MNRAS, 263, pp.936ADSGoogle Scholar
  3. Fabian, A.C. (1994) Ann. Rev. A&A, 32, pp.277MathSciNetADSCrossRefGoogle Scholar
  4. Falle, S.A.E.G. (1991) MNRAS, 250, 581ADSGoogle Scholar
  5. Higgins et al., (1995) In: ‘Shocks in Astrophysics, eds’. Millar, T.J. & Raga A., in pressGoogle Scholar
  6. van Leer, Bram (1979) J.Comp.Phys., 32, p101CrossRefGoogle Scholar
  7. Pedelty, J. A., Rudnick, L., McCarthy, P.J. & Spinrad, H. (1989) AJ, 97, pp.647ADSCrossRefGoogle Scholar
  8. Wilson, A. S. (1993) In: ‘Astrophysical Jets’, STScI Symp.Ser. Vol. 6, eds. Burgarella, Livio & O’Dea, pp.122Google Scholar

Copyright information

© International Astronomical Union 1996

Authors and Affiliations

  • Steve Higgins
    • 1
  • Tim O’Brien
    • 1
  • James Dunlop
    • 2
  1. 1.Astrophysics GroupLiverpool John Moores UniversityLiverpoolUK
  2. 2.Institute for AstronomyUniversity of EdinburghBlackford HillUK

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