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Boundary conditions on the early Sun from ancient cosmogenic neon in meteoritesIsotopic analysis of neon from individual grains of the meteorites Murchison (CM) and Kapoeta (howardite) shows large enrichments of cosmogenic neon in grains with solar flare tracks. The quantity of this component is incompatible with galactic cosmic ray or solar cosmic ray irradiation under present conditions and is attributed to irradiation by energetic flares from an early active Sun. Handpicked grains from each meteorite were grouped according to the presence or absence of solar flare heavy ion tracks, and these four samples were analyzed with an ion counting noble gas mass spectrometer.
Document ID
19860018555
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hohenberg, C. M. (Washington Univ. Saint Louis, MO, United States)
Caffee, M. W. (Washington Univ. Saint Louis, MO, United States)
Swindle, T. D. (Washington Univ. Saint Louis, MO, United States)
Goswami, J. (Physical Research Lab. Ahmedabad (India), United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Lunar and Planetary Inst. Workshop on Past and Present Solar Radiation: The Record in Meteoritic and Lunar Regolith Material
Subject Category
Solar Physics
Accession Number
86N28027
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19860018547Collected WorksWorkshop on Past and Present Solar Radiation: The Record in Meteoritic and Lunar Regolith Material
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