ar X iv : a st ro - p h / 06 10 10 7 v 1 4 O ct 2 00 6 Simulations of the interaction 1 of cold gas with radio jets
نویسنده
چکیده
7 A new scenario for the interaction of a jet with a background medium with cold 8 clouds is investigated by means of hydrodynamic turbulence simulations with cool9 ing. The idea is that the cold clouds are overtaken by a radio cocoon and stirred 10 up by turbulence in this cocoon. The 2D multiphase turbulence simulations contain 11 all the three gas phases and have a number of interesting properties. The produced 12 power spectrum is proportional to the inverse square of the wavevector. The Mach 13 number density relation may explain the observed velocities in emission line gas 14 associated with radio galaxies. The model also explains the increased optical visi15 bility within the radio structures, the correlation between emission line and radio 16 luminosity, and the evolution of the alignment effect with source size. I also propose 17 this to be a useful model for the recently discovered neutral outflows in nearby radio 18 sources. 19
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تاریخ انتشار 2006