Cosmic ray elemental abundances for Z = 26-42 measured on HEAO-3

Details Cosmic ray elemental abundances for Z = 26-42 measured on HEAO-3 Cosmic ray elemental abundances for Z = 26-42 measured on HEAO-3

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icrc....9..106b&link_type=abstract

IN: International Cosmic Ray Conference, 18th, Bangalore, India, August 22-September 3, 1983, Late Papers. Volume 9 (A85-22801 0

Astronomy and Astrophysics

Astronomy

Abundance, Cosmic Rays, Energy Spectra, Spaceborne Astronomy, Algorithms, Charged Particles, Heao 3, Spectrum Analysis

Scientific paper

An analysis is presented of 454 days of data from the Heavy Nuclei Experiment aboard the HEAO-3 satellite using an improved charge estimation algorithm is presented. A more precise normalization of Z = 32-42 abundances relative to iron is obtained, and more accurate detector response maps are used to recognize and reject a small class of events which was previously misidentified. The resulting abundances are in generally good agreement with solar system abundances with the first ionization potential (FIP) and with the Cameron solar system r-process (1982) with and without an applied FIP bias. The simplest interpretation of the results is that the cosmic ray source has solar system abundances modified by an FIP and/or volatility-dependent bias.

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