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- National Institute for AstrophysicsIT287 papers
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18 papers · 1 filter
Analysis of the Spectral Energy Distributions of Fermi bright blazars
S. Cutini, D. Gasparrini, P. Giommi +2
Blazars are a small fraction of all extragalactic sources but, unlike other objects, they are strong emitters across the entire electromagnetic spectrum. In this study we have cond…
Study of microwave/gamma-ray properties for Fermi-LAT bright AGNs
D. Gasparrini, E. Cavazzuti, P. Giommi +3
Blazars are a small fraction of all extragalactic sources but, unlike other objects, they are strong emitters across the entire electromagnetic spectrum. Recent data in the microwa…
Powerful high energy emission of the remarkable BL Lac object S5 0716+714
V. Vittorini, M. Tavani, A. Paggi +13
BL Lac objects of the intermediate subclass (IBLs) are known to emit a substantial fraction of their power in the energy range 0.1--10 GeV. Detecting gamma-ray emission from such s…
On a new Near-Infrared method to estimate the absolute ages of star clusters: NGC3201 as a first test case
G. Bono, P. B. Stetson, D. A. VandenBerg +24
We present a new method to estimate the absolute ages of stellar systems. This method is based on the difference in magnitude between the main sequence turn-off (MSTO) and a well d…
Discovery of extreme particle acceleration in the microquasar Cygnus X-3
M. Tavani, A. Bulgarelli, G. Piano +67
The study of relativistic particle acceleration is a major topic of high-energy astrophysics. It is well known that massive black holes in active galaxies can release a substantial…
Monitoring the hard X-ray sky with SuperAGILE
M. Feroci, E. Costa, E. Del Monte +77
SuperAGILE is the hard X-ray monitor of the AGILE gamma ray mission, in orbit since 23 April 2007. It is an imaging experiment based on a set of four independent silicon str…