Observations at the exceptional elemental and isotopic composition patterns in HE-rich solar energetic particle events
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observations↗
Engineering topics
Wiedenbeck, M.
Publications and source records attributed to Wiedenbeck, M..
The Isotopic Composition of Cosmic-Ray Iron and Nickel
Observations from the Cosmic Ray Isotope Spectrometer (CRIS) on ACE have been used to derive contraints on the locations, physical conditions, and time scales for cosmic-ray acceleration and transport.
cosmic ray composition advanced composition explor↗
Energetic (sup 3)He in the Interplanetary Medium and its Acceleration by Shocks
Observations of number of relatively large solar energetic particle (SEP) events that have occurred since the launch of ACE in August 1997 have shown that the ratio of (sup 3)He/(sup 4)He can be enhanced over the solar wind value by more than an order magnitude in such events.
solar energetic particles advanced composition exp↗
Cosmic-Ray Source Composition Determined from ACE
The cosmic rays arriving at Earth comprise a mix of material produced by stellar sources and ejected into the interstellar medium (primary cosmic rays) and particles produced by fragmentation of heavier nuclei during transport through the Galaxy.
cosmic rays astrophysics galaxy↗
Cosmic Ray Clocks and Propagation in the Galaxy
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cosmic rays isotopes↗
Constraints on the Time Delay Between Nucleosynthesis and Cosmic-Ray Acdeleration from Observations of (sup 59)Ni and (sup 59)Co
Measurements of the abundances of cosmic-ray (sup 59)Ni and (sup 59)Co are reported form the Cosmic Ray Isotope Spectrometer (CRIS) on the Advanced Composition Explorer (ACE).
abundancessupernovae↗
Accelerator Tests of Large Area Silicon Detectors for the Advanced Composition Explorer (ACE) Mission
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cosmic rays solar isotope spectrometer SIS cosmic ↗
The Measured Performance of a High-Pressure Gas Ionization Chamber Instrument for Cosmic Ray Isotope Studies
THISTLE is a large multi-element high pressure gas ionization chamber designed to identify the charge and mass of heavy cosmic rays.
THISTLE high-pressure gas ionization chamber instr↗
A particle astrophysics magnet spectrometer facility for Space Station
Planning for and design tradeoff studies related to the particle astrophysics magnet spectrometer known as Astromag are presented. This facility is being planned for the Space Station Freedom and address questions regarding the origin and acceleration of cosmic rays, explore the synthesis of elements by making detailed measurements of cosmic ray isotopic composition, and search for evidence of antimatter and other cosmologically significant particles. This work was supported by an international study team which includes particle physicists and cosmic ray physicists.
Ormes, J. F.↗