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Published July 15, 1979 | Published
Journal Article Open

The isotopic composition of solar flare accelerated neon


The individual isotopes of neon in energetic solar flare particles have been clearly resolved with arms mass resolution of 0.20 amu. We find ^(20)Ne/^(22)Ne = 7.6 (+2.0, -1.8) and ^(21)Ne/^(22)Ne ≾ 0.11 in the 11-26 MeV per nucleon interval. This isotopic composition is essentially the same as that of meteoritic planetary neon-A and is significantly different from that of the solar wind.

Additional Information

© 1979 American Astronomical Society. Received 1979 March 12; accepted 1979 April 6. W. E. Althouse, A. C. Cummings, and T. L. Garrard made significant contributions to the design and development of the HIST instrument. This work was supported in part by NASA under contract NAS5-20721 and grant NGR 05-002-160.

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Published - 1979ApJ___231L__97M.pdf


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