Results 51 to 60 of about 4,448,337 (335)
Towards Understanding the Origin of Cosmic-Ray Positrons
International Conference on Rebooting Computing, 2019 Precision measurements of cosmic ray positrons by the Alpha Magnetic Spectrometer on the International Space Station are presented up to 1 TeV based on 1.9 million positrons.
Zhili Weng
semanticscholar +1 more source
Status and prospects of the TAx4 experiment [PDF]
EPJ Web of Conferences, 2019 The TAx4 experiment is a project to observe highest energy cosmic rays by expanding the detection area of the TA experiment with newly constructed surface detectors (SDs) and fluorescence detectors (FDs).
Kido Eiji
doaj +1 more source
, 2014 Context: Since a few years, signatures of supernova remnants associated with molecular clouds have been detected in gamma rays. Whether these gamma rays are generated by cosmic ray electrons or by cosmic ray protons is usually not known. The detection of
Röken, Christian +2 more
core +1 more source
HAWC Observations Strongly Favor Pulsar Interpretations of the Cosmic-Ray Positron Excess [PDF]
, 2017 Recent measurements of the Geminga and B0656+14 pulsars by the gamma-ray telescope HAWC (along with earlier measurements by Milagro) indicate that these objects generate significant fluxes of very high-energy electrons.
D. Hooper, I. Cholis, T. Linden, K. Fang
semanticscholar +1 more source
Constraining heavy dark matter with cosmic-ray antiprotons [PDF]
, 2017 Cosmic-ray observations provide a powerful probe of dark matter annihilation in the Galaxy. In this paper we derive constraints on heavy dark matter from the recent precise AMS-02 antiproton data. We consider all possible annihilation channels into pairs
A. Cuoco +3 more
semanticscholar +1 more source
Cosmic ray antiprotons at high energies [PDF]
, 2017 Cosmic ray antiprotons provide a powerful tool to probe dark matter annihilations in our galaxy. The sensitivity of this important channel is, however, diluted by sizable uncertainties in the secondary antiproton background.
M. Winkler
semanticscholar +1 more source
Evaluation of cosmic ray rejection algorithms on single-shot exposures [PDF]
, 2005 To maximise data output from single-shot astronomical images, the rejection of cosmic rays is important. We present the results of a benchmark trial comparing various cosmic ray rejection algorithms.
Bertin +7 more
core +2 more sources
Monitoring and forecasting of great radiation hazards for spacecraft and aircrafts by online cosmic ray data [PDF]
Annales Geophysicae, 2005 We show that an exact forecast of great radiation hazard in space, in the magnetosphere, in the atmosphere and on the ground can be made by using high-energy particles (few GeV/nucleon and higher) whose transportation from the Sun is characterized by ...
L. I. Dorman, L. I. Dorman
doaj +1 more source
Hard X-ray emission of the Earth's atmosphere: Monte Carlo simulations [PDF]
, 2006 We perform Monte Carlo simulations of cosmic ray-induced hard X-ray radiation from the Earth's atmosphere. We find that the shape of the spectrum emergent from the atmosphere in the energy range 25-300 keV is mainly determined by Compton scatterings and ...
Churazov, E. +3 more
core +2 more sources
Simulating cosmic ray physics on a moving mesh [PDF]
, 2016 We discuss new methods to integrate the cosmic ray (CR) evolution equations coupled to magneto-hydrodynamics (MHD) on an unstructured moving mesh, as realised in the massively parallel AREPO code for cosmological simulations.
C. Pfrommer +6 more
semanticscholar +1 more source