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Revista mexicana de astronomía y astrofísica

versão impressa ISSN 0185-1101


ZANINETTI, L.. A turbulent model for the surface brightness of extragalactic jets. Rev. mex. astron. astrofis [online]. 2009, vol.45, n.1, pp.25-53. ISSN 0185-1101.

This paper summarizes the known physics of turbulent jets observed in laboratory experiments. The formula, which gives the power released in turbulence describes the concentration of turbulence/relativistic particles in each point of the astrophysical jets. The same expression is also used to analyze the power released in turbulence in the case of pipe and non-Newtonian fluids. Through an integral operation it is possible to deduce the intensity of synchrotron radiation for a profile perpendicular (or not) to a straight jet, a 2D map for a perpendicular, randomly oriented straight jet, as well as a 2D map of complex trajectories such as NCC 4061 and 3C31. Presented here is a simulation of the spectral index in brightness of 3C273 as well as a 2D map of the degree of linear polarization. The Sobel operator is applied to the theoretical 2D maps of straight perpendicular jets.

Palavras-chave : galaxies: jets; radio continuum: galaxies.

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