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Gravitational microlensing of gamma-ray blazars
(Wiley Blackwell Publishing, Inc, 2003-12)
We present a detailed study of the effects of gravitational microlensing on compact and distant γ -ray blazars. These objects have γ -ray-emitting regions that are small enough to be affected by microlensing effects produced ...
Short-term effects of gamma ray bursts on Earth
(SPRINGER, 2009)
The aim of the present work is to study the potential short-term atmospheric and biospheric influence of Gamma Ray Bursts on the Earth. We focus in the ultraviolet flash at planet`s surface, which occurs as a result of the ...
High-mass microquasars and low-latitude gamma-ray sources
(EDP Sciences, 2004-12)
Population studies of unidentified EGRET sources suggest that there exist at least three different populations of galactic gamma-ray sources. One of these populations is formed by young objects distributed along the galactic ...
Effects of gamma ray bursts in Earth`s biosphere
(SPRINGER, 2010)
We continue former work on the modeling of potential effects of Gamma Ray Bursts on Phanerozoic Earth. We focus on global biospheric effects of ozone depletion and model the spectral reduction of light by NO(2) formed in ...
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 ...