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 ...
Heino Falcke+35 more
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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. The mechanism underlying these phenomena is the emission of relativistic "cannonballs" by ordinary supernovae, analogous to
A. De Rújula, A. De Rújula
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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. We review the effective field theory approach to describing LV, the issue of naturalness, and many phenomena characteristic of LV.
JACOBSON T+2 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 ...
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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 ...
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Exentsive Air Showers and High Energy Phenomena [PDF]
I.- Introduction, Facts and Phenomenology.- Shower Detection Methods and Basic Event Reconstruction.- Hadronic Interactions and Cascades.- Electromagnetic Interactions and Photon-Electron Cascades.- Muon and Neutrino Interactions.- Longitudinal Development and Equal Intensity Distributions.- Depth of Shower Maximum and Elongation Rate.- Lateral ...
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Magnetorotational instability in dense electron-positron-ion plasmas. [PDF]
Usman S, Mushtaq A.
europepmc +1 more source
Direct frequency comb spectroscopy of HCN to evaluate line lists. [PDF]
Bailey DM+3 more
europepmc +1 more source
Generalizing the similitude approach for laboratory astrophysics through equivalence symmetries for the example of radiative waves. [PDF]
Tranchant V+4 more
europepmc +1 more source
Observation of sub-relativistic collisionless shock generation and breakout dynamics. [PDF]
Bai Y+6 more
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