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

collaborators
Showing 2003Show all

9 papers · 1 filter

astro-ph2003★ 125 cited

Confirmation of non-thermal hard X-ray excess in the Coma cluster from two epoch observations

Roberto Fusco-Femiano, Mauro Orlandini, Gianfranco Brunetti +4

We report the hard X-ray spectrum of the Coma cluster obtained using the PDS data of two independent BeppoSAX observations performed with a time interval of about three years. In b…

astro-ph2003★ 152 cited

Alfvenic reacceleration of relativistic particles in galaxy clusters: MHD waves, leptons and hadrons

Gianfranco Brunetti, Pasquale Blasi, Rossella Cassano +1

There is a growing evidence that extended radio halos are most likely generated by electrons reaccelerated via some kind of turbulence generated in the cluster volume during major…

astro-ph2003★ 82 cited

Particle acceleration in cooling flow clusters of galaxies: the case of Abell 2626

Myriam Gitti, Gianfranco Brunetti, Luigina Feretti +1

It has recently been proposed a theoretical model which accounts for the origin of radio mini-halos observed in some cooling flow clusters as related to electron re-acceleration by…

astro-ph2003★ 1 cited

Cooling Flows and Radio Mini-Halos in Clusters of Galaxies

Myriam Gitti, Gianfranco Brunetti, Giancarlo Setti +1

We apply to radio mini-halo candidates a model for electron re-acceleration in cooling flows (Gitti, Brunetti & Setti 2002). In agreement with the basic idea of the model, we find…

astro-ph2003★ 52 cited

In-Situ Particle Acceleration in Extragalactic Radio Hot Spots: Observations Meet Expectations

G. Brunetti, K. -H. Mack, M. A. Prieto +1

We discuss, in terms of particle acceleration, the results from optical VLT observations of hot spots associated with radio galaxies. On the basis of observational and theoretical…

astro-ph2003★ 14 cited

X-ray emission from GPS/CSS sources

Aneta Siemiginowska, Thomas L. Aldcroft, Jill Bechtold +3

The high spatial resolution of the Chandra X-ray Observatory allows us to study the environment of GPS/CSS sources to within an arcsec of the strong compact core. We present the di…

astro-ph2003★ 37 cited

Chandra Discovery of an X-ray jet and Extended X-ray Structure in z=0.63 quasar, B2 0738+313

Aneta Siemiginowska, Carlo Stanghellini, Gianfranco Brunetti +8

We have made a 30 ksec Chandra observation of the redshift z=0.63 GPS quasar B2 0738+313. We detected X-ray emission from the core and have discovered a 200 kpc (projected on the s…

astro-ph2003★ 37 cited

Inverse Compton X-rays from the radio galaxy 3C 219

A. Comastri, G. Brunetti, D. Dallacasa +3

We report the results from a Chandra observation of the powerful nearby (z=0.1744) radio galaxy 3C 219. We find evidence for non-thermal X-ray emission from the radio lobes which f…

astro-ph2003★ 50 cited

The radio halo in the merging cluster A3562

T. Venturi, S. Bardelli, D. Dallacasa +4

we present new VLA observations at 1.4 GHz confirming the presence of a radio halo at the centre of the cluster A3562, in the core of the Shapley Concentration. We also report a de…