161 citations · 375 across the 8 of their papers we have counts for
8 papers
The primordial environment of supermassive black holes (II): deep Y and J band images around the z=6.3 quasar SDSS J1030+0524
B. Balmaverde, R. Gilli, M. Mignoli +9
Many cosmological studies predict that early supermassive black holes (SMBHs) can only form in the most massive dark matter halos embedded within large scale structures marked by g…
Are young radio sources in equipartition?
M. Orienti, D. Dallacasa
The knowledge of physical conditions in young radio sources is important for defining the framework of models describing radio source evolution. We investigate whether young radio…
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…
Chandra discovery of activity in the quiescent nuclear black hole of NGC821
A. Baldi, G. Fabbiano, S. Pellegrini +4
We report the results of the Chandra ACIS-S observations of the elliptical galaxy NGC 821, which harbors a supermassive nuclear black hole (of 3.5x10^7 solar masses), but does not…
Deep images of cluster radio halos
M. Bacchi, L. Feretti, G. Giovannini +1
New radio data are presented for the clusters A401, A545, A754, A1914, A2219 and A2390, where the presence of diffuse radio emission was suggested from the images of the NRAO VLA S…
Unconventional AGN in hard X-ray surveys
A. Comastri, M. Brusa, M. Mignoli +1
Extensive programs of follow-up observations of hard X-ray selected sources have unambiguosly revealed that the sources of the X-ray background are characterized by an extremely la…