Steep spectrum emission from simulated radiogalaxies (2)

Evolution of synchrotron radio emission at 120MHz for the lobes injected by four radiogalaxies in an evolving galaxy cluster, simulated with ENZO (enzo-project.org). The relativistic electrons injected by radiogalaxies are evolved using Fokker Planck equations, and are subject to adiabatic…

Steep spectrum emission from simulated radiogalaxies (2)

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Evolution of synchrotron radio emission at 120MHz for the lobes injected by four radiogalaxies in an evolving galaxy cluster, simulated with ENZO (enzo-project.org).
The relativistic electrons injected by radiogalaxies are evolved using Fokker Planck equations, and are subject to adiabatic and radiative losses, as well as to the re-acceleration and injection of relativistic electrons by shock waves developing in the system.
The emission has been smoothed for a gaussian kernel with FWHM of 100″ to mimic an observation with MWA.
The contours show the detectable radio emission starting from 3 times the rms noise and are equally spaced in sqrt space; the colors give the spectral slope of the radio emission across 80 and 150 MHz.
Credits: simulations by Vazza & Wittor, 2020 (cosmosimfrazza.myfreesites.net/erc-magcow); Hodgson et al. 2021, ApJ

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