The Synchrotron Spectrum of Diffuse Radio Sources: Effects of Particle and Field Distributions

Details The Synchrotron Spectrum of Diffuse Radio Sources: Effects of Particle and Field Distributions The Synchrotron Spectrum of Diffuse Radio Sources: Effects of Particle and Field Distributions

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...457..150e&link_type=abstract

Astrophysical Journal v.457, p.150

Astronomy and Astrophysics

Astronomy

27

Radiation Mechanisms: Nonthermal, Radio Continuum: Galaxies

Scientific paper

We present analytic and numerical calculations of the synchrotron spectrum arising from a distribution of magnetic field strengths as well as particle energies. We find that power4aw photon spectra can arise either from power4aw particle distributions, or power-law field distributions. We also find that high-frequency steepening of the photon spectrum is common; this steepening need not be due to synchrotron aging. Different underlying distributions do lead to different rates of high-frequency steepening, and this may provide observational discriminants between different physical pictures.

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