Determining broad-band spectra of radio galaxies with the EVLA

Details Determining broad-band spectra of radio galaxies with the EVLA Determining broad-band spectra of radio galaxies with the EVLA

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011yera.confe..17h&link_type=abstract

The 41st Young European Radio Astronomers Conference, held at University of Manchester/Jodrell Bank Observatory, 18-20 July 2011

Physics

Scientific paper

Determining the shape of the energy spectrum of an electron population producing synchrotron radiation can often give key insights into the underlying physics of a radio source. Poor sampling in frequency space has traditionally meant that distinguishing between various models that predict a particular electron energy spectrum has been hard to achieve. I will show how the capability of the upgraded EVLA to observe at widely spaced frequencies and broad bandwidths allows the problem of determining spectral shape to be overcome and will demonstrate the use of this new capability to test the validity of spectral ageing models in the lobes of FRII radio galaxies.

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