Fig. 5.

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Different cooling and propagation timescales at the current time. The solid back, magenta, blue, green, dark yellow and red lines represent the adiabatic loss timescale, the synchrotron cooling timescale, the inverse Compton cooling timescale, the diffusion timescale, the advection timescale, and the total timescale, respectively. The related parameters are listed in Table 1.
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