Results 91 to 100 of about 4,292,570 (358)

Cosmic ray source abundances and the acceleration of cosmic rays [PDF]

open access: yesAIP Conference Proceedings, 2000
The galactic cosmic ray elemental source abundances display a fractionation that is possibly based on first ionization potential (FIP) or volatility. A few elements break the general correlation of FIP and volatility and the abundances of these may help to distinguish between models for the origin of the cosmic ray source material. Data from the Cosmic
George, J. S.   +13 more
openaire   +3 more sources

Three component model of cosmic ray spectra from 10 GeV to 100 PeV

open access: yes, 2006
A model to describe cosmic ray spectra in the energy region from 10 GeV to 100 PeV is suggested based on the assumption that Galactic cosmic ray flux is a mixture of fluxes accelerated by shocks from nova and supernova of different types.
Sokolskaya, N. V., Zatsepin, V. I.
core   +1 more source

Cosmic Ray Physics with ACORDE at LHC [PDF]

open access: yes, 2007
The use of large underground high-energy physics experiments, for comic ray studies, have been used, in the past, at CERN, in order to measure, precisely, the inclusive cosmic ray flux in the energy range from 2x10^10 - 2x10^12 eV.
  +5 more
core   +2 more sources

Nanoscale Biodegradable Printing for Designed Tuneability of Vaccine Delivery Kinetics

open access: yesAdvanced Materials, EarlyView.
Spatiotemporal Controlled Release Inks of Biocompatible polyEsters (SCRIBE) is a novel 2PP resin family with sub‐micron resolution and tuneable hydrolysis. SCRIBE enables direct printing of hollow microparticles with complex chemistries and geometries inaccessible to molding techniques, which are used to modulate antibody titers and class switching as ...
David J. Peeler   +16 more
wiley   +1 more source

Cosmic Ray Physics with the IceCube Observatory [PDF]

open access: yes, 2012
The IceCube Neutrino Observatory with its 1-km^3 in-ice detector and the 1-km^2 surface detector (IceTop) constitutes a three-dimensional cosmic ray detector well suited for general cosmic ray physics. Various measurements of cosmic ray properties, such as energy spectra, mass composition and anisotropies, have been obtained from analyses of air ...
arxiv   +1 more source

Origin of Cosmic Rays [PDF]

open access: yesNature, 1948
IT is important to decide whether or not the main sources of the cosmic ray particles are external to our galaxy. An external source seems, at first sight, to be established by the observed isotropy of the cosmic rays incident on the earth. But it has been claimed by a number of authors that this isotropy is simply a consequence of a magnetic field ...
Fred Hoyle, J. W. Dungey
openaire   +3 more sources

Cosmic rays and molecular clouds

open access: yes, 2012
This paper deals with the cosmic-ray penetration into molecular clouds and with the related gamma--ray emission. High energy cosmic rays interact with the dense gas and produce neutral pions which in turn decay into two gamma rays.
A Atoyan   +96 more
core   +3 more sources

Cosmic ray driven galactic winds [PDF]

open access: yesInternational Journal of Modern Physics D, 2016
Galactic winds constitute a primary feedback process in the ecology and evolution of galaxies. They are ubiquitously observed and exhibit a rich phenomenology, whose origin is actively investigated both theoretically and observationally. Cosmic rays have
Sarah Recchia
semanticscholar   +1 more source

Scintillation Response of 0D Cs3Cu2I5 Thin Layers to Light‐ and Heavy‐Ion Irradiation

open access: yesAdvanced Photonics Research, EarlyView.
Driven by increasing interest in uncovering the remarkable photoluminescence quantum yield of Cs3Cu2I5, polycrystalline thin layers are synthesized to investigate its radioluminescence response to energetic ions. Its spectroscopic capability is assessed in a wide range of ion mass and internal excitation processes are explored.
Mátyás Hunyadi   +6 more
wiley   +1 more source

Quantitative Constraint on the Contribution of Resolved Gamma-Ray Sources to the Sub-PeV Galactic Diffuse Gamma-Ray Flux Measured by the Tibet ASγ Experiment

open access: yesThe Astrophysical Journal Letters
Motivated by the difference between the fluxes of sub-PeV Galactic diffuse gamma-ray emission (GDE) measured by the Tibet AS γ experiment and the LHAASO collaboration, our study constrains the contribution to the GDE flux measured by Tibet AS γ from the ...
S. Kato   +15 more
doaj   +1 more source

Home - About - Disclaimer - Privacy