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Time delay between neutrinos and gamma-rays in short gamma-ray bursts
(Institute of Physics Publishing, 2019-02)
In this Letter we make an estimate of the time delay between signals, recorded at detectors on Earth, of neutrinos and photons originated in a short gamma-ray burst. We describe the geometry and dynamics of the system ...
Gamma-ray absorption in the microquasar SS433
(Elsevier Science, 2007-11)
We discuss the gamma-ray absorption in the inner region of the microquasar SS433. Our investigation includes several contributions to the opacity of this system. They result from the ambient fields generated by the primary ...
Production of gamma rays and neutrinos in the dark jets of the microquasar SS433
(Oxford University Press, 2008-12)
We study the spectral energy distribution of gamma rays and neutrinos in the precessing microquasar SS433 as a result of pp interactions within its dark jets. Gamma-ray absorption due to interactions with matter of the ...
Gamma-ray emission from star-forming regions
(Società Astronomica Italiana, 2010-04)
Star-forming regions have been tentatively associated with gamma-ray sources since the early days of the COS B satellite. After the many sources detected by the Compton Gamma-Ray Observatory, the statistical evidence for ...
A broadband leptonic model for gamma-ray emitting microquasars
(Edp Sciences, 2006-12)
Observational and theoretical studies point to microquasars (MQs) as possible counterparts of a significant fraction of the unidentifiedgamma-ray sources detected so far. At present, a proper scenario to explain the emission ...
Porosity measurement of solid pharmaceutical dosage forms by gamma-ray transmission
(Pergamon-Elsevier B.V. Ltd, 2010-12-01)
The aim of the present work is the determination of porosity in tablets by using the gamma-ray transmission technique Tablet dissolution depends on some inherent characteristics of the manufacturing process, such as ...
Porosity measurement of solid pharmaceutical dosage forms by gamma-ray transmission
(Pergamon-Elsevier B.V. Ltd, 2010-12-01)
The aim of the present work is the determination of porosity in tablets by using the gamma-ray transmission technique Tablet dissolution depends on some inherent characteristics of the manufacturing process, such as ...
On the nature of the variable gamma-ray sources at low galactic latitudes
(Springer, 2005-12)
Population studies of EGRET gamma-ray sources indicate that there is a distinctive population of bright sources at low galactic latitudes. The sources have a distribution consistent with that of young galactic objects, ...