Results 1 to 10 of about 35,358 (192)
A UNIFIED MODEL OF HIGH-ENERGY ASTROPHYSICAL PHENOMENA [PDF]
International Journal of Modern Physics A, 2005 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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The Phenomena of High Energy Astrophysics [PDF]
Symposium - International Astronomical Union, 2003 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 ...
R. Blandford
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Generalizing the similitude approach for laboratory astrophysics through equivalence symmetries for the example of radiative waves. [PDF]
Sci RepFor decades, scaling laws have served as the cornerstone of laboratory astrophysics, enabling quantitative comparisons between astrophysical phenomena and laboratory experiments.
Tranchant V +4 more
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Accretion discs, jets and high energy phenomena in astrophysics
, 2003 Jean Dalibard +4 more
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GrailQuest: hunting for atoms of space and time hidden in the wrinkle of Space-Time [PDF]
Experimental Astronomy, 2021 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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High-Energy Multimessenger Transient Astrophysics [PDF]
Annual Review of Nuclear and Particle Science, 2019 The recent discoveries of high-energy cosmic neutrinos and gravitational waves from astrophysical objects have led to a new era of multimessenger astrophysics.
K. Murase, I. Bartos
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Lorentz violation at high energy: Concepts, phenomena, and astrophysical constraints [PDF]
Annals of Physics, 2006 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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Testing Lorentz Symmetry Using High Energy Astrophysics Observations [PDF]
Symmetry, 2017 We discuss some of the tests of Lorentz symmetry made possible by astrophysical observations of ultrahigh energy cosmic rays, γ-rays, and neutrinos. These are among the most sensitive tests of Lorentz invariance violation because they are the highest ...
F. Stecker
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High-Energy Transients: Thermonuclear (Type-I) X-Ray Bursts [PDF]
Proceedings of the International Astronomical Union, 2017 Many distinct classes of high-energy variability have been observed in astrophysical sources, and over a range of time-scales. The widest range, spanning microseconds to decades, is found in accreting, compact, stellar-mass objects, including neutron ...
D. Galloway +7 more
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7th Conference on High Energy Astrophysics in Southern Africa (HEASA2019)
, 2020 HEASA 2019 was the seventh conference in the annual series “High Energy Astrophysics in Southern Africa”. Its goal was to bring together scientists from the southern African region, the African continent, and around the world with an interest in high ...
Michael Backes +5 more
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