Blast waves enter a deep Newtonian phase with reduced electron acceleration, producing shallower radio flux decay by δα = 6(p-2)/5 and specific sub-GHz peaks observable by LOFAR and SKA.
The dashed blue and red curves show the ultra-relativistic (u≫1) asymptotic limits for ˜t∗ and ˜tr, respectively
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The Deep Newtonian Regime in Late-Time Blast Waves: Inevitable Transition and Distinct Flux Signatures
Blast waves enter a deep Newtonian phase with reduced electron acceleration, producing shallower radio flux decay by δα = 6(p-2)/5 and specific sub-GHz peaks observable by LOFAR and SKA.