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Exploring the Extreme Universe with the Fermi Gamma-Ray Space Telescope

By D. J. Thompson

Abstract

Because high-energy gamma rays are produced by powerful sources, the Fermi Gamma-ray Space Telescope provides a window on extreme conditions in the Universe. Some key observations of the constantly changing gamma-ray sky include: (1) Gamma-rays from pulsars appear to come from a region well above the surface of the neutron star; (2) Multiwavelength studies of blazars show that simple models of jet emission are not always adequate to explain what is seen; (3) Gamma-ray bursts can constrain models of quantum gravity; (4) Cosmic-ray electrons at energies approaching 1 TeV suggest a local source for some of these particles

Topics: Astronomy
Year: 2010
OAI identifier: oai:casi.ntrs.nasa.gov:20100024534
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