Results 61 to 70 of about 2,878 (188)

Detection response of the active components of the SciBar Cosmic Ray Telescope at Sierra Negra

European Physical Journal C: Particles and Fields
The Scibar Cosmic-Ray Telescope (SciCRT) is the most promising detector of the Sierra Negra Cosmic Rays Observatory (SN-CRO). At this location, being a target and a tracker of secondary cosmic rays, the SciCRT offers a high probability of observing solar
F. Monterde-Andrade, L. X. González, J. F. Valdés-Galicia, O. G. Morales-Olivares, M. A. Sergeeva, J. Newton-Bosch, E. Ortiz, A. Hurtado, R. Taylor, Y. Matsubara, T. Sako, Y. Itow, T. Kawabata, K. Munakata, C. Kato, Y. Hayashi, Y. Masuda, M. Matsumoto, H. Takamaru, S. Shibata, A. Oshima, T. Koi, H. Kojima, H. Tsuchiya, K. Watanabe, M. Kozai, Y. Nakamura   +26 more
doaj   +1 more source

New geochronological constraints on Late Pleistocene glaciation in the southern Cadí Massif, SE Pyrenees

Journal of Quaternary Science, EarlyView.
ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva, J. Ventura, A. Çiner, M. A. Sarıkaya, J. Bonsoms, K. M. Wilcken   +5 more
wiley   +1 more source

Neutrino flavor ratios modified by cosmic-ray secondary acceleration [PDF]

Physical Review D, 2015
Acceleration of $π$'s and $μ$'s modifies the flavor ratio at Earth (at astrophysical sources) of neutrinos produced by $π$ decay, $ν_e:ν_μ:ν_τ$, from $1:1:1$ ($1:2:0$) to $1:1.8:1.8$ ($0:1:0$) at high energy, because $π$'s decay more than $μ$'s during secondary-acceleration.
Kawanaka, Norita, Ioka, Kunihito
openaire   +2 more sources

Late Quaternary lake filling and drying in northern Australia's largest freshwater lake

Journal of Quaternary Science, EarlyView.
ABSTRACT Lake Woods, Jurrkulu, is northern Australia's largest freshwater lake filled today in strong Indo–Australian summer monsoons (IASM) to maximum depths of ~5 m. On the western margins of the lake, two large arcuate ridges occur 20 to 40 m above the lake floor and inset within these are other mid‐elevation lake deposits, such as depositional ...
Tim J. Cohen, Zenobia Jacobs, Caitlyn Scobie, Sam Marx, William Reynolds, Matthew S. Forbes, Haidee Cadd, Xue Rui, Laura Mogensen, Alexandru Codilean, Réka H. Fülöp, Klaus M. Wilcken, Fabian Boesl, Alex F. Wall, Nicola Stromsoe   +14 more
wiley   +1 more source

Cosmic-ray knee and flux of secondaries from interactions of cosmic rays with dark matter

, 2009
We discuss possible implications of a large interaction cross section between cosmic rays and dark matter particles due to new physics at the TeV scale. In particular, in models with extra dimensions and a low fundamental scale of gravity the cross section grows very fast at transplanckian energies.
Masip, Manuel, Mastromatteo, Iacopo
openaire   +2 more sources

AMS-02 Results Support the Secondary Origin of Cosmic Ray Positrons [PDF]

Physical Review Letters, 2013
6 pages, 7 figures.
Blum, Kfir, Katz, Boaz, Waxman, Eli
openaire   +3 more sources

Titanium Oxide Thin Films With Metal Nanodisks as Plasmonic Metamaterial Photocatalyst Sheets for IPA‐Assisted CO2 Reduction

Small, EarlyView.
Plasmonic metal nanodisks (Ag, Au, Pt, Pd) combined with TiO2 thin films were fabricated into periodic metamaterial photocatalyst sheets by using standard semiconductor methods. Under visible light, Pt/TiO2 and Pd/TiO2 achieved hydrogen and methane production from CO2 and water using isopropyl alcohol, demonstrating promising solar‐fuel production ...
Benny Ku, Lukas Feierabend, Chun‐Wei Su, Chih‐Chi Huang, Gonzalo Aguila Flores, Ulrich Plachetka, Max C. Lemme   +6 more
wiley   +1 more source

Evolution of the Secondary Electron Spectrum during Cosmic-Ray Discharge in the Universe

The Astrophysical Journal
We recently found that streaming cosmic rays (CRs) induce a resistive electric field that can accelerate secondary electrons produced by CR ionization.
Yutaka Ohira
doaj   +1 more source

Impact of Atmospheric Profile Variability on Simulated Secondary Cosmic Ray Fluxes Using AtRIS

Universe
When high-energy particles of cosmic origin penetrate the atmosphere, they collide with atmospheric atoms and molecules, triggering cascades of secondary particles that can propagate down to the surface.
Alexandre Winant, Viviane Pierrard, Edith Botek   +2 more
doaj   +1 more source

Solar Cyclic Modulation of Diurnal Variation in Cosmic Ray Intensity

Journal of Astronomy and Space Sciences, 2018
Cosmic rays are ions that move at relativistic speeds. They generate secondary cosmic rays by successive collisions with atmospheric particles, and then, the secondary particles reach the ground.
Eun Ho Park, Jongil Jung, Suyeon Oh, Paul Evenson   +3 more
doaj   +1 more source