LOFAR imaging of Cygnus A – direct detection of a turnover in the hotspot radio spectra
The low-frequency radio spectra of the hotspots within powerful radio galaxies can provide valuable information about the physical processes operating at the site of the jet termination. These processes are responsible for the dissipation of jet kinetic energy, particle acceleration, and magnetic-field generation. Here, we report new observations of the powerful radio galaxy Cygnus A using the Low Frequency Array (LOFAR) between 109 and 183 MHz, at an angular resolution of ∼3.5 arcsec. The ra...Expand abstract
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- © 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
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