Search Results - "Stone, E.C"
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Cosmic-Ray Neon, Wolf-Rayet Stars, and the Superbubble Origin of Galactic Cosmic Rays
Published in The Astrophysical journal (20-11-2005)“…We report the abundances of neon isotopes in the Galactic cosmic rays (GCRs) using data from the Cosmic Ray Isotope Spectrometer (CRIS) aboard the Advanced…”
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The OB association origin of galactic cosmic rays
Published in New astronomy reviews (01-10-2008)“…The isotopic abundances of neon, iron, and a number of other species in the galactic cosmic rays have been measured using the Cosmic Ray Isotope Spectrometer…”
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Isotopic Composition of Cosmic Rays: Results from the Cosmic Ray Isotope Spectrometer on the ACE Spacecraft
Published in Nuclear physics. A (25-07-2005)“…The Cosmic Ray Isotope Spectrometer on the ACE spacecraft measures the isotopic composition of cosmic-ray elements from Li through Zn with an unprecedented…”
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Probing the Energetic Particle Environment near the Sun
Published in Nature (London) (12-12-2019)“…NASA’s Parker Solar Probe mission1 recently plunged through the inner heliosphere of the Sun to its perihelia, about 24 million kilometres from the Sun…”
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Voyager 1 Explores the Termination Shock Region and the Heliosheath beyond
Published in Science (American Association for the Advancement of Science) (23-09-2005)“…Voyager 1 crossed the termination shock of the supersonic flow of the solar wind on 16 December 2004 at a distance of 94.01 astronomical units from the Sun,…”
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The Voyager 2 Encounter with the Neptunian System
Published in Science (American Association for the Advancement of Science) (15-12-1989)“…An overview of the Voyager 2 encounter with Neptune is presented, including a brief discussion of the trajectory, the planned observations, and highlights of…”
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Crossing the Termination Shock into the Heliosheath: Magnetic Fields
Published in Science (American Association for the Advancement of Science) (23-09-2005)“…Magnetic fields measured by Voyager 1 show that the spacecraft crossed or was crossed by the termination shock on about 16 December 2004 at 94.0 astronomical…”
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Orientation of the Local Interstellar Magnetic Field
Published in Science (American Association for the Advancement of Science) (11-05-2007)“…The orientation of the local interstellar magnetic field introduces asymmetries in the heliosphere that affect the location of heliospheric radio emissions and…”
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Energetic Charged Particles in the Magnetosphere of Neptune
Published in Science (American Association for the Advancement of Science) (15-12-1989)“…The Voyager 2 cosmic ray system (CRS) measured significant fluxes of energetic [$\gtrsim $ 1 megaelectron volt (MeV)] trapped electrons and protons in the…”
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Unsaturated zone hydrostratigraphies: A novel archive of past climates in dryland continental regions
Published in Earth-science reviews (01-06-2016)“…Natural chemical tracers contained in moisture within unsaturated zone (USZ) sediments have very significant potential as a novel archive of past climate and…”
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Observations of the Li, Be, and B isotopes and constraints on cosmic-ray propagation
Published in Advances in space research (01-01-2006)“…The abundance of Li, Be, and B isotopes in galactic cosmic rays (GCRs) between E = 50 and 200 MeV/nucleon has been observed by the Cosmic Ray Isotope…”
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Last Glacial Maximum conditions in southern Africa: Are we any closer to understanding the climate of this time period?
Published in Progress in physical geography (01-10-2014)“…The Last Glacial Maximum (LGM) (21±2 ka) is an important period for which to understand past climatic and environmental conditions. In particular it is a key…”
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Linear dune accumulation chronologies from the southwest Kalahari, Namibia: challenges of reconstructing late Quaternary palaeoenvironments from aeolian landforms
Published in Quaternary science reviews (01-09-2008)“…The linear dunes of the southern Kalahari dunefield constitute one of the major palaeoenvironmental proxies in the region. The application of optically…”
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Rapid age assessment in the Namib Sand Sea using a portable luminescence reader
Published in Quaternary geochronology (01-10-2015)“…A rapid assessment of burial age for sedimentary materials is useful to aid in-situ interpretation of sites and sequences during fieldwork. This can assist…”
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Age and dynamics of the Namib Sand Sea: A review of chronological evidence and possible landscape development models
Published in Journal of African earth sciences (1994) (01-06-2013)“…► Review of age of, and models of, landscape development in the Namib Sand Sea. ► Approaches to assessing the age of dune forms are reviewed. ► Ideas about…”
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Casting new light on late Quaternary environmental and palaeohydrological change in the Namib Desert: A review of the application of optically stimulated luminescence in the region
Published in Journal of arid environments (01-06-2013)“…The application of optically stimulated luminescence (OSL) dating in the Namib Desert is casting new light on late Quaternary environments. OSL has been…”
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Naturally-high nitrate in unsaturated zone sand dunes above the Stampriet Basin, Namibia
Published in Journal of arid environments (01-06-2014)“…Elevated groundwater nitrate levels are common in drylands, often in excess of WHO guidelines, with concern for human and animal health. In light of recent…”
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Fractionation of solar energetic particles and solar wind according to first ionization potential
Published in Advances in space research (01-01-2002)“…Although it is well known that solar energetic particles are depleted in elements with first ionization potential (FIP) greater than ∼10 eV, it is less well…”
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Late Quaternary palaeohydrological changes in the northern Namib Sand Sea: New chronologies using OSL dating of interdigitated aeolian and water-lain interdune deposits
Published in Palaeogeography, palaeoclimatology, palaeoecology (15-03-2010)“…Ephemeral rivers today terminate in playas adjacent to the eastern part of the Namib Sand Sea, although there is evidence that these fluvial systems penetrated…”
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Wolf-Rayet stars, OB associations, and the origin of galactic cosmic rays
Published in New astronomy reviews (01-10-2006)“…We have measured the isotopic abundances of neon and several refractory species in the galactic cosmic rays (GCRs) using the cosmic ray isotope spectrometer…”
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