Results 91 to 100 of about 181,166 (278)

Radial intensity gradients of galactic cosmic rays in the heliosphere at solar maximum: 1D no-shock simulation [PDF]

Geofísica Internacional, 2009
We study the spatial distribution of galactic cosmic rays in the heliosphere at solar maximum of cycles 21, 22 and 23, using a one-dimensional no-shock model of the cosmic ray transport equation.
R. A. Caballero-Lopez, O. G. Morales-Olivares   +1 more
doaj  

TeV GAMMA RAYS: OBSERVATIONS VERSUS EXPECTATIONS & THEORY

Acta Polytechnica, 2013
The scope of this paper is to discuss two important questions relevant for TeV γ-ray astronomy; the pursuit to reveal the origin of cosmic rays in our galaxy, and the opacity of the universe in γ-rays.
Frank Krennrich
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Modulation of galactic cosmic rays during the unusual solar minimum between cycles 23 and 24 [PDF]

, 2013
During the recent solar minimum between cycles 23 and 24 (solar minimum P23/24), the intensity of galactic cosmic rays (GCR) measured at the Earth was the highest ever recorded since space age.
L.-L. Zhao, Gang Qin, M. Zhang, B. Heber
semanticscholar   +1 more source

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley   +1 more source

On The Origin of Very High Energy Cosmic Rays

, 2005
We discuss the most recent developments in our understanding of the acceleration and propagation of cosmic rays up to the highest energies. In particular we specialize our discussion to three issues: 1) developments in the theory of particle acceleration
Abu-Zayyad T., Baring M. G., Berezinsky V. S., Biermann P. L., Dolag K., Dolag K., Krymskii G. F., Lagage P. O., Lagage P. O., Lemoine M., McKenzie J. F., Olinto A. V., PASQUALE BLASI, Sigl G., Sigl G., Synge J. L., Völk H. J., Zatsepin G. T.   +17 more
core   +1 more source

Cosmic-ray composition and its relation to shock acceleration by supernova remnants [PDF]

, 2007
An overview is given on the present status of the understanding of the origin of galactic cosmic rays. Recent measurements of charged cosmic rays and photons are reviewed.
Abbasi, Abbasi, Abraham, Abu-Zayyad, Abu-Zayyad, Aglietta, Aglietta, Aglietta, Aglietta, Aguirre, Aharonian, Aharonian, Aharonian, Aharonian, Ajima, Alcaraz, Amenomori, Amenomori, Amenomori, Amenomori, Amenomori, Anchordoqui, Antoni, Antoni, Antoni, Antoni, Antoni, Antoni, Arqueros, Asakimori, Atoyan, Ave, Baade, Bell, Bellotti, Belov, Berezhko, Berezhko, Berezhko, Berezinsky, Bernlöhr, Biermann, Binns, Binns, Blanford, Boezio, Candia, Chernov, Cherry, Compton, Corbato, Cutler, Derbina, Dickinson, Diehl, Ellison, Engelmann, Engelmann, Engler, Ferenc, Fermi, Fowler, Fowler, Fowler, Gahbauer, Gaisser, Garcia-Munoz, Garzia-Munoz, Glasmacher, Glasmacher, Gress, Haungs, Hillas, Hinton, Huang, Hörandel, Hörandel, Hörandel, Hörandel, Hörandel, Hörandel, Hörandel, Ichimura, Juliusson, Jörg R. Hörandel, Kalmykov, Keilhauer, Kestel, Kieda, Kobayakawa, Lagage, Lawrence, Lawrence, Lodders, Maier, Matthews, Menn, Meyer, Meyer, Minagawa, Müller, Nagano, Nagano, Navarra, Ogio, Ptuskin, Ptuskin, Ptuskin, Roulet, Ryan, Sanuki, Seo, Shibata, Shirk, Simpson, Simpson, Simpson, Smith, Stanev, Stone, Strong, Sveshnikova, Swordy, Takeda, Völk, Watson, Weekes, Wiebel-Soth, Wiedenbeck, Yanasak   +129 more
core   +4 more sources

Oxychlorine Species on Mars: A Review

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
wiley   +1 more source

Discussion of ‘Robust distance covariance’ by S. Leyder, J. Raymaekers and P. J. Rousseeuw

International Statistical Review, EarlyView.
Hallin Marc, Davide La Vecchia, Hang Liu, Xinyi Xu   +3 more
wiley   +1 more source

Approximation of Daily AMS‐02 Spectra With Machine Learning Methods

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Almost three thousand daily AMS‐02 proton spectra from 2011 to 2019 offer the most precise and extensive data set of cosmic ray spectra covering a wide energy range. As such, they offer a unique opportunity to test machine learning algorithms for approximating cosmic ray proton spectra based on the inputs usually available to solar modulation ...
Martin Nguyen, Pavol Bobík, Ján Genči
wiley   +1 more source