290 citations · 1.5k across the 31 of their papers we have counts for
10 papers · 1 filter
SZ effect from radio-galaxy lobes: astrophysical and cosmological relevance
S. Colafrancesco
We derive the SZ effect arising in radio-galaxy lobes that are filled with high-energy, non-thermal electrons. We provide here quantitative estimates for SZ effect expected from th…
Warming rays in cluster cool cores
S. Colafrancesco, P. Marchegiani
We present a model of cosmic ray heating of clusters' cores that reproduces the observed temperature distribution in clusters by using an energy balance condition in which the emit…
SWIFT observations of TeV BL Lac objects
A. Tramacere, P. Giommi, E. Massaro +10
Context: We present the results of a set of observations of nine TeV detected BL Lac objects performed by the XRT and UVOT detectors on board the Swift satellite between March and…
Beyond the Standard Lore of the SZ effect
S. Colafrancesco
Multi-frequency (X-ray, optical and radio) observations of galaxy clusters indicate that the atmospheres of these cosmic structures consist of a complex structure of thermal (hot a…
Spatial features of non-thermal SZ effect in galaxy clusters
E. Palladino, S. Colafrancesco, P. Marchegiani
We investigate the spatial behaviour of the total comptonization parameter evaluated for a galaxy cluster containing two population of electrons: the thermal population,…
Temperature and total mass profiles of the A3571 cluster of galaxies
J. Nevalainen, J. Kaastra, A. N. Parmar +4
We present BeppoSAX results of a spatially resolved spectral analysis of A3571, a relaxed nearby cluster of galaxies. In the central 2' (130/h_50 kpc) radius the metal abundance is…