Results 81 to 90 of about 4,166,127 (209)
Opening Remarks ~ Prospects of very high energy cosmic ray interactions for astroparticle physics [PDF]
EPJ Web of Conferences, 2019 Hadronic interactions of very high energy cosmic rays have been studied in various aspects of motivation. In recent decades, mainly motivated by air shower experiments, modelling of very high energy cosmic ray interactions have been greatly improved ...
Itow Yoshitaka
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Radiation Backgrounds at Cosmic Dawn: X-Rays from Compact Binaries [PDF]
, 2016 We compute the expected X-ray diffuse background and radiative feedback on the intergalactic medium (IGM) from X-ray binaries prior to and during the epoch of reionization. The cosmic evolution of compact binaries is followed using a population synthesis
P. Madau, T. Fragos
semanticscholar +1 more source
Spectra of He Isotopes and the 3He/4He Ratio
The Astrophysical JournalSince its launch, the Alpha Magnetic Spectrometer-02 (AMS-02) has delivered outstanding quality measurements of the spectra of cosmic-ray (CR) species, e ^± , $\bar{p}$ , and nuclei (H–Si, S, Fe), which have resulted in a number of breakthroughs. Besides
M. J. Boschini +13 more
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New Journal of Physics, 2009 27 pages, 3 figures, review to appear in New Journal of Physics [Focus Issue]
Sommers, Paul, Westerhoff, Stefan
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The mass composition of cosmic rays measured with LOFAR
EPJ Web of Conferences, 2017 High-energy cosmic rays, impinging on the atmosphere of the Earth initiate cascades of secondary particles, the extensive air showers. The electrons and positrons in the air shower emit electromagnetic radiation.
Hörandel Jörg R. +15 more
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ПРОБЛЕМА ПРОИСХОЖДЕНИЯ КОСМИЧЕСКИХ ЛУЧЕЙ СВЕРХВЫСОКИХ ЭНЕРГИЙ
Odessa Astronomical Publications, 2011 The problem of cosmic ray origin comes to two main questions: were and how cosmic particles are accelerated up to very high energies. In this paper, arguments in favor of two basic sources of cosmic rays (Galaxy and Metagalaxy) are considered and ...
А. А. Петрухин
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ACCELERATION OF COSMIC RAYS AT COSMIC SHOCKS
Journal of The Korean Astronomical Society, 2003 Nonthermal particles can be produced due to incomplete thermalization at collisionless shocks and further accelerated to very high energies via diffusive shock acceleration. In a previous study we explored the cosmic ray (CR) acceleration at cosmic shocks through numerical simulations of CR modified, quasi-parallel shocks in 1D plane-parallel geometry ...
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A Rigorous Solution to the Superluminal Issue in the Diffusion Equation
The Astrophysical JournalSuperluminal propagation is an intrinsic problem in the diffusion equation and has not been effectively addressed for a long time. In this work, a rigorous solution to this issue is obtained under the assumption that particles undergo a random flight ...
Xing-Jian Lv +4 more
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, 2016 AMS-02 is wide acceptance high-energy physics experiment installed on the International Space Station in May 2011 and operating continuously since then.
A. Oliva
semanticscholar +1 more source
The cosmic-ray staircase: the outcome of the cosmic-ray acoustic instability
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Recently, cosmic rays (CRs) have emerged as a leading candidate for driving galactic winds. Small-scale processes can dramatically affect global wind properties. We run two-moment simulations of CR streaming to study how sound waves are driven unstable by phase-shifted CR forces and CR heating.
Tsung, Tsun Hin Navin +2 more
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