260 citations · 954 across the 30 of their papers we have counts for
17 papers · 1 filter
Comments to the review "Nonthermal phenomena in clusters of galaxies" by Y.Rephaeli et al. that will appear on the book: Clusters of galaxies: beyond the thermal view
Roberto Fusco-Femiano, Mauro Orlandini
Comments to the review "Nonthermal Phenomena in Clusters of Galaxies" by Y.Rephaeli et al. (arXiv:0801.0982 [astro-ph]) that regard the presence of a hard X-ray excess in the Coma…
XMM-Newton observation of the cluster ZW 1305.4+2941 in the field SA 57
Fabio Gastaldello, Dario Trevese, Fausto Vagnetti +1
We report the details of an XMM observation of the cluster of galaxies ZW 1305.4+2941 at the intermediate redshift of z=0.241, increasing the small number of interesting X-ray cons…
Hard X-Ray Excess in the Coma Cluster: a Reply to Rossetti & Molendi (astro-ph/0702417)
Roberto Fusco-Femiano, Raffaella Landi, Mauro Orlandini
A short replay to the comment of Rossetti & Molendi (astro-ph/0702417) in answer to the paper of Fusco-Femiano, Landi & Orlandini 2007 regarding the presence of a nonthermal compon…
Nonthermal hard X-ray excess in the Coma cluster: resolving the discrepancy between the results of different PDS data analyses
Roberto Fusco-Femiano, Raffaella Landi, Mauro Orlandini
The detection of a nonthermal excess in the Coma cluster spectrum by two BeppoSAX observations analyzed with the XAS package (Fusco-Femiano et al.) has been disavowed by an analysi…
Nonthermal hard X-ray excess in the cluster Abell 2256 from two epoch observations
Roberto Fusco-Femiano, Raffaella Landi, Mauro Orlandini
After confirmation of the presence of a nonthermal hard X-ray excess with respect to the thermal emission in the Coma cluster from two independent observations, obtained using the…
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…
Hard X-ray and radio observations of Abell 754
R. Fusco-Femiano, M. Orlandini, S. De Grandi +5
We present a long BeppoSAX observation of Abell 754 that reports a nonthermal excess with respect to the thermal emission at energies greater than ~45 keV. A VLA radio observation…
Detection of X-ray Emission from the Eastern Radio Lobe of PICTOR A
Paola Grandi, Matteo Guainazzi, Laura Maraschi +5
The XMM-Newton satellite has revealed extended X-ray emission from the eastern radio lobe of the Fanaroff-Riley II Radio Galaxy Pictor A. The X-ray spectrum, accumulated on a regio…
Development of Hydrodynamic Instability in the Intergalactic Medium of the Merging Cluster of Galaxies A3667
Pasquale Mazzotta, Alexey Vikhlinin, Roberto Fusco-Femiano +1
A3667, a spectacular merger cluster, was observed by Chandra twice. In this paper we review the main results of the analysis of these observations. In particular we show evidence f…
Hard X-ray emission from the galaxy cluster A3667
R. Fusco-Femiano, D. Dal Fiume, M. Orlandini +3
We report the results of a long BeppoSAX observation of Abell 3667, one of the most spectacular galaxy cluster in the southern sky. A clear detection of hard X-ray radiation up to…
Hard X-ray emission from the galaxy cluster A2256
R. Fusco-Femiano, D. Dal Fiume, S. De Grandi +6
After the positive detection by BeppoSAX of hard X-ray radiation up to ~80 keV in the Coma cluster spectrum, we present evidence for nonthermal emission from A2256 in excess of the…
Interaction in Abell 2256: the BeppoSAX view
Silvano Molendi, Sabrina De Grandi, Roberto Fusco-Femiano
We present results from a spatially resolved spectral analysis of the merging cluster Abell 2256. The long integration time (135 ks) and the good spatial resolution of the MECS onb…
An X-ray and optical study of the cluster A33
S. Colafrancesco, C. R. Mullis, A. Wolter +11
We report the first detailed X-ray and optical observations of the medium-distant cluster A33 obtained with the Beppo-SAX satellite and with the UH 2.2m and Keck II telescopes at M…
Hard X-Ray Radiation in the Coma Cluster Spectrum
R. Fusco-Femiano, D. Dal Fiume, L. Feretti +5
Hard X-ray radiation has been detected for the first time in the Coma cluster by BeppoSAX. Thanks to the unprecedented sensitivity of the Phoswich Detection System (PDS) instrument…
Beppo-Sax Observation of the Coma cluster
R. Fusco-Femiano, D. Dal Fiume, L. Feretti +3
We present first results of the BeppoSAX observation of the Coma Cluster. Thanks to the unprecedented sensitivity of the PDS instrument, the source has been detected up to ~80 keV.…
Luminosity Segregation from Merging in Clusters of Galaxies
R. Fusco-Femiano, N. Menci
We compute the evolution of the space-dependent mass distribution of galaxies in clusters due to binary aggregations by solving a space-dependent Smoluchowski equation. We derive t…
How Abundant is Iron in the Core of the Perseus Cluster?
S. Molendi, G. Matt, L. A. Antonelli +5
The analysis of Perseus data collected with the Medium Energy Concentrator Spectrometer (MECS) on board Beppo-SAX shows that the ratio of the flux of the 8 keV line complex (domina…