activity
19972026
most citedCosmic rays in galaxy clusters and their non-thermal emission

576 citations · 12k across the 198 of their papers we have counts for

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Showing 2007Show all

8 papers · 1 filter

astro-ph2007★ 62 cited

Revised statistics of radio halos and the re-acceleration model

R. Cassano, G. Brunetti, T. Venturi +4

Aims. The statistical properties of radio halos can be used to discriminate among the possible models for their origin. Therefore an unbiased and exhaustive investigation in this d…

astro-ph2007★ 158 cited

Cosmic rays and Radio Halos in galaxy clusters : new constraints from radio observations

G. Brunetti, T. Venturi, D. Dallacasa +4

Clusters of galaxies are sites of acceleration of charged particles and sources of non-thermal radiation. We report on new constraints on the population of cosmic rays in the Intra…

astro-ph2007

Hard X-rays from Galaxy Clusters and SIMBOL-X

G. Brunetti, R. Cassano, G. Setti

Non thermal emission from galaxy clusters demonstrates the existence of relativistic particles and magnetic fields in the Intra Cluster Medium (ICM). Present instruments do not all…

astro-ph2007

An X-ray view of Pictor A radio lobes: a spatially resolved study

G. Migliori, P. Grandi, G. C. G. Palumbo +2

A spatially resolved analysis of the lobes of the radio galaxy Pictor A has been performed for the first time starting from a 50 ksec XMM-Newton observation. Magnetic field, B_{IC}…

astro-ph2007★ 110 cited

New scaling relations in cluster radio halos and the re-acceleration model

R. Cassano, G. Brunetti, G. Setti +2

In this paper we derive new expected scaling relations for clusters with giant radio halos in the framework of the re-acceleration scenario in a simplified, but physically motivate…

astro-ph2007★ 36 cited

Radio Lobes of Pictor A: an X-ray spatially resolved Study

G. Migliori, P. Grandi, G. G. C. Palumbo +2

A new XMM observation has made possible a detailed study of both lobes of the radio galaxy Pictor A. Their X-ray emission is of non thermal origin and due to Inverse Compton scatte…

astro-ph2007★ 389 cited

Compressible Turbulence in Galaxy Clusters: Physics and Stochastic Particle Re-acceleration

G. Brunetti, A. Lazarian

We attempt to explain the non-thermal emission arising from galaxy clusters as a result of the re-acceleration of electrons by compressible turbulence induced by cluster mergers. I…

astro-ph2007★ 94 cited

Low-Frequency study of two clusters of galaxies: A2744 and A2219

E. Orru', M. Murgia, L. Feretti +6

Spectral index images can be used to constraint the energy spectrum of relativistic electrons and magnetic field distribution in radio halos and relics, providing useful informatio…