Inverse Compton Scattering as the Source of Diffuse EUV Emission in the Coma Cluster of Galaxies

Details Inverse Compton Scattering as the Source of Diffuse EUV Emission in the Coma Cluster of Galaxies Inverse Compton Scattering as the Source of Diffuse EUV Emission in the Coma Cluster of Galaxies

1998-04-28

arxiv.org/abs/astro-ph/9804310v1

Astronomy and Astrophysics

Astrophysics

11 pages, 5 figures

Scientific paper

10.1086/306267

We have examined the hypothesis that the majority of the diffuse EUV flux in the Coma cluster is due to inverse Compton scattering of low energy cosmic ray electrons (0.16 < epsilon < 0.31 GeV) against the 3K black-body background. We present data on the two-dimensional spatial distribution of the EUV flux and show that these data provide strong support for a non-thermal origin for the EUV flux. However, we show that this emission cannot be produced by an extrapolation to lower energies of the observed synchrotron radio emitting electrons and an additional component of low energy cosmic ray electrons is required.

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