273 citations · 464 across the 15 of their papers we have counts for
4 papers · 1 filter
Detection of distant AGN by MAGIC: the transparency of the Universe to high-energy photons
Marco Roncadelli, Alessandro De Angelis, Oriana Mansutti
The recent detection of blazar 3C279 by MAGIC has confirmed previous indications by H.E.S.S. that the Universe is more transparent to very-high-energy gamma rays than previously th…
The Next Generation of Cherenkov Telescopes. A White Paper for the Italian National Institute for Astrophysics (INAF)
L. A. Antonelli, P. Blasi, G. Bonanno +15
Motivated by the recent challenging results from TeV astronomy, the VHE INAF community asked a group of them to write this White Paper to summarize the status and future of Cherenk…
Photon-axion conversion in Active Galactic Nuclei?
Nicola Bassan, Marco Roncadelli
Axion-Like Particles (ALPs) are the focus of intense current research. We analyze photon-ALP conversion in the context of relativistic jet models of Active Galactic Nuclei (AGN) fo…
Primordial black holes are again on the limelight
Marco Roncadelli, Aldo Treves, Roberto Turolla
We derive a strong upper bound on the amount of Primordial Black Holes (PBHs) that can still be present in the Universe. Gravitational capture of PBHs by the Milky Way stars during…