Magnetic Field Strengths in the Lobes of FRII Radio Sources

Details Magnetic Field Strengths in the Lobes of FRII Radio Sources Magnetic Field Strengths in the Lobes of FRII Radio Sources

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1271h&link_type=abstract

Chandra Proposal ID #04700427

Computer Science

Chandra Proposal Id #04700427

Scientific paper

There is good evidence that the magnetic field strengths (B) in the hotspots of powerful double radio sources are close to their canonical minimum-energy values, but the situation is much less clear in their lobes. B there controls the lobe pressure, and so is key to an understanding of radio source dynamics. The best way to measure B in lobes is to observe inverse-Compton (IC) scattering of microwave background photons up to X-ray energies. We have recently found good evidence for this process in deep Chandra observations of radio sources. We now propose to observe three more objects whose IC emission should be detected at a high level of confidence. This will give a sample large and unbiased enough to let us make statements about the field strengths in the population as a whole.

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