Search Results - "Wiedenbeck, M"
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25 MeV Proton Events Observed by the High Energy Telescopes on the STEREO A and B Spacecraft and/or at Earth During the First ∼ Seven Years of the STEREO Mission
Published in Solar physics (01-08-2014)“…Using observations from the High Energy Telescopes (HETs) on the STEREO A and B spacecraft and similar observations from near-Earth spacecraft, we summarize…”
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Chert oxygen isotope ratios are driven by Earth's thermal evolution
Published in Proceedings of the National Academy of Sciences - PNAS (20-12-2022)“…The O/ O ratio of cherts (δ O ) increases nearly monotonically by ~15‰ from the Archean to present. Two end-member explanations have emerged: cooling seawater…”
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GALACTIC COSMIC RAY ORIGINS AND OB ASSOCIATIONS: EVIDENCE FROM SuperTIGER OBSERVATIONS OF ELEMENTS 26Fe THROUGH 40Zr
Published in The Astrophysical journal (10-11-2016)“…ABSTRACT We report abundances of elements from 26Fe to 40Zr in the cosmic radiation measured by the SuperTIGER (Trans-Iron Galactic Element Recorder)…”
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IS⊙IS Solar γ-Ray Measurements: Initial Observations and Calibrations
Published in The Astrophysical journal (01-06-2024)“…High-energy neutral solar radiation in the form of γ-rays and neutrons is produced as secondary products in solar flares. The characteristics of this emission…”
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Erratum: “The Isotopic Abundances of Galactic Cosmic Rays with Atomic Number 29 ≤ Z ≤ 38” (2022, ApJ, 936, 13)
Published in The Astrophysical journal (01-09-2023)Get full text
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The Isotopic Abundances of Galactic Cosmic Rays with Atomic Number 29 ≤ Z ≤ 38
Published in The Astrophysical journal (01-09-2022)“…Abstract The Cosmic Ray Isotope Spectrometer (CRIS) on the Advanced Composition Explorer spacecraft has been operating successfully in a halo orbit about the…”
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Observations of the 2022 September 5 Solar Energetic Particle Event at 15 Solar Radii
Published in The Astrophysical journal (01-05-2024)“…Abstract On 2022 September 5, Parker Solar Probe (Parker) observed a large solar energetic particle (SEP) event at the unprecedented distance of only 15 R S…”
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The Low-Energy Telescope (LET) and SEP Central Electronics for the STEREO Mission
Published in Space science reviews (01-04-2008)“…The Low-Energy Telescope (LET) is one of four sensors that make up the Solar Energetic Particle (SEP) instrument of the IMPACT investigation for NASA’s STEREO…”
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Likely Common Coronal Source of Solar Wind and 3He-enriched Energetic Particles: Uncoupled Transport from the Low Corona to 0.2 au
Published in The Astrophysical journal (01-04-2024)“…Parker Solar Probe (PSP) observations of a small dispersive event on 2022 February 27 and 28 indicate scatter-free propagation as the dominant transport…”
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On the differences in composition between solar energetic particles and solar wind
Published in Space science reviews (01-06-2007)“…Issue Title: The Composition of Matter Although the average composition of solar energetic particles (SEPs) and the bulk solar wind are similar in a number of…”
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Conference Proceeding Journal Article -
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Discovery of very large amplitude whistler-mode waves in Earth's radiation belts
Published in Geophysical research letters (01-01-2008)“…During a passage through the Earth's dawn‐side outer radiation belt, whistler‐mode waves with amplitudes up to more than ∼240 mV/m were observed by the STEREO…”
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Composition Variation of the 2023 May 16 Solar Energetic Particle Event Observed by SolO and PSP
Published in Astrophysical journal. Letters (01-11-2024)“…Abstract In this study, we employ the combined charged particle measurements from Integrated Science Investigation of the Sun on board the Parker Solar Probe…”
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Anomalous Cosmic-Ray Oxygen Observations into 0.1 au
Published in The Astrophysical journal (01-01-2022)“…Abstract The Integrated Science Investigation of the Sun instrument suite onboard NASA’s Parker Solar Probe mission continues to measure solar energetic…”
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Elemental Composition and Energy Spectra of Galactic Cosmic Rays During Solar Cycle 23
Published in The Astrophysical journal (20-06-2009)“…We report improved measurements of elemental abundances and spectra for galactic cosmic-ray (GCR) nuclei obtained by the Cosmic Ray Isotope Spectrometer on…”
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THE LONGITUDINAL DEPENDENCE OF HEAVY-ION COMPOSITION IN THE 2013 APRIL 11 SOLAR ENERGETIC PARTICLE EVENT
Published in The Astrophysical journal (20-09-2014)“…On 2013 April 11 active region 11719 was centered just west of the central meridian; at 06:55 UT, it erupted with an M6.5 X-ray flare and a moderately fast…”
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Parker Solar Probe observations of helical structures as boundaries for energetic particles
Published in Monthly notices of the Royal Astronomical Society (01-12-2021)“…ABSTRACT Energetic particle transport in the interplanetary medium is known to be affected by magnetic structures. It has been demonstrated for solar energetic…”
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Comparative Analysis of the 2020 November 29 Solar Energetic Particle Event Observed by Parker Solar Probe
Published in The Astrophysical journal (01-10-2021)“…We analyze two specific features of the intense solar energetic particle (SEP) event observed by Parker Solar Probe (PSP) between 2020 November 29 and 2020…”
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A Living Catalog of Parker Solar Probe IS⊙IS Energetic Particle Enhancements
Published in The Astrophysical journal. Supplement series (01-02-2023)“…Abstract Energetic charged particles are pervasive throughout the heliosphere with contributions from solar energetic particle events, stream and corotating…”
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Variable Ion Compositions of Solar Energetic Particle Events in the Inner Heliosphere: A Field Line Braiding Model with Compound Injections
Published in The Astrophysical journal (01-01-2022)“…Abstract We propose a model for interpreting highly variable ion composition ratios in solar energetic particle (SEP) events recently observed by the Parker…”
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First Observations of Anomalous Cosmic Rays in to 36 Solar Radii
Published in The Astrophysical journal (01-05-2021)“…Abstract NASA’s Parker Solar Probe mission continues to travel closer to the Sun than any prior human-made object, with an expected closest approach of <10…”
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