139 citations · 1.9k across the 45 of their papers we have counts for
30 papers · 1 filter
The Optical-Radio Mapping: the kinetic efficiency of Radio-Loud AGNs
Francesco Shankar, Alfonso Cavaliere, Michele Cirasuolo +1
We constrain the mean kinetic efficiency of radio-loud active galactic nuclei by using an optically selected sample for which both the optical and the radio luminosity functions (L…
X-ray spectral evolution of TeV BL Lac objects: eleven years of observations with BeppoSAX, XMM-Newton and SWIFT satellites
F. Massaro, A. Tramacere, A. Cavaliere +2
Many of the extragalactic sources detected in rays at TeV energies are BL Lac objects. In particular, they belong to the subclass of ``high frequency peaked BL Lacs" (HBLs), as…
Missing Baryons, from Clusters to Groups of Galaxies
A. Cavaliere, A. Lapi
From clusters to groups of galaxies, the powerful bremsstrahlung radiation L_X emitted in X rays by the intracluster plasma is observed to decline sharply with lowering virial temp…
Bimodal AGNs in Bimodal Galaxies
A. Cavaliere, N. Menci
By their star content, the galaxies split out into a red and a blue population; their color index peaked around u-r=2.5 or u-r=1, respectively, quantifies the ratio of the blue sta…
Signatures of synchrotron emission and of electron acceleration in the X-ray spectra of Mrk 421
A. Tramacere, F. Massaro, A. Cavaliere
BL Lac objects undergo strong flux variations involving considerable changes in their spectral shapes. We specifically investigate the X-ray spectral evolution of Mrk 421 over a ti…
Searching for AGN-driven Shocks in Galaxy Clusters
A. Cavaliere, A. Lapi
Shocks and blastwaves are expected to be driven driven into the intracluster medium filling galaxy groups and clusters by powerful outbursts of active galactic nuclei or quasars in…