Results 11 to 20 of about 829 (204)
A Unified Model of High-Energy Astrophysical phenomena [PDF]
I outline a unified model of high-energy astrophysics, in which the gamma background radiation, cluster "cooling flows", gamma-ray bursts, X-ray flashes and cosmic-ray electrons and nuclei of all energies -share a common origin.
A. DE RÚJULA, De Rújula, Alvaro
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Lorentz violation at high energy: Concepts, phenomena and astrophysical constraints [PDF]
We consider here the possibility of quantum gravity induced violation of Lorentz symmetry (LV). Even if suppressed by the inverse Planck mass such LV can be tested by current experiments and astrophysical observations.
Ted Jacobson +7 more
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GrailQuest: hunting for atoms of space and time hidden in the wrinkle of Space-Time [PDF]
AbstractGrailQuest(Gamma Ray Astronomy International Laboratory for QUantum Exploration of Space-Time) is a mission concept based on a constellation (hundreds/thousands) of nano/micro/small-satellites in low (or near) Earth orbits. Each satellite hosts a non-collimated array of scintillator crystals coupled with Silicon Drift Detectors with broad ...
Burderi L. +32 more
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The Phenomena of High Energy Astrophysics [PDF]
A brief summary of some highlights in the study of high energy astrophysical sources over the past decade is presented. It is argued that the great progress that has been made derives largely from the application of new technology to observation throughout all of the electromagnetic and other spectra and that, on this basis, the next decade should be ...
openaire +3 more sources
Neutrino treatment in multidimensional astrophysical simulations : a new spectral scheme [PDF]
Neutrinos play a central role in modern physics and astrophysics. Their extremely weak interaction rate with baryons and other leptons makes their detection on the Earth difficult and challenging.
Perego, Albino
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HIGH ENERGY APPROACHES TO LOW ENERGY PHENOMENA IN ASTROPHYSICS [PDF]
Studies in nuclear astrophysics have long been associated with long runs at small accelerators, measuring ever-decreasing cross sections as one approached (but rarely reached) the energy of reactions in stars. But in recent years pioneering studies have shown that studies at high-energy accelerators can often yield the same information, and in some ...
openaire +2 more sources
Computational challenges in high-energy astrophysics [PDF]
Supercomputers and grid networks are the basic instruments to elaborate and test physical models involving complex astrophysical phenomena. In this review some aspects of the field of high-energy astrophysics are illustrated that require large-scale ...
Ferrari, Attilio, Ferrari, A.
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NEUTRINO TELESCOPES AND HIGH-ENERGY ASTROPHYSICS. [PDF]
Neutrino astrophysics offers new perspectives on Universe investigation: high-energy neutrinos, produced by the most energetic phenomena in our Galaxy and in the Universe, carry complementary information with respect to photons.
Spurio, M., SPURIO, MAURIZIO
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TeV gamma-ray emission from accreting binary pulsars [PDF]
The high-mass X-ray binary SMC X-1 has been observed during the interval 1986-1989 at a threshold γ-ray energy of 0.4 TeV using the University of Durham Mark III air Cerenkov telescope at Narrabri.
Mannings, Vincent, Mannings, V
core
The Cosmic Stories: Beginning, Evolution and Present Days of the Universe [PDF]
This work presents three studies of independent astrophysical phenomena which cover a full timeline of the universe from the epoch of inflation to the present day.
Tseliakhovich, Dmitriy
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