Publication Abstracts

Brancazio and Cameron 1967

Brancazio, P.J., and A.G.W. Cameron, 1967: Abundance anomalies produced by nuclear reactions in stellar surface layers: II. Results and comparison with anomalies in peculiar A stars. Can. J. Phys., 45, 3297-3311, doi:10.1139/p67-276.

A normal solar abundance distribution of the elements was subjected to a calculated bombardment by protons and alpha particles having energy spectra of the form E-n, where n was usually taken to be equal to 2.5, and having low-energy cutoffs on the spectra at 1 MeV. Bombardment with protons resulted in breakdown of nuclei to lower mass numbers. Bombardment with alpha particles resulted in buildup of nuclei to higher mass numbers. It is concluded that preferential acceleration of alpha particles to varying total fluxes can produce the abundance anomalies of peculiar A stars in concentrated patches on the surface. Local surface magnetic fields in the range 106-107 G are required to provide the necessary energy sources for the accelerated particles.

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BibTeX Citation

@article{br09100s,
  author={Brancazio, P. J. and Cameron, A. G. W.},
  title={Abundance anomalies produced by nuclear reactions in stellar surface layers: II. Results and comparison with anomalies in peculiar A stars},
  year={1967},
  journal={Can. J. Phys.},
  volume={45},
  pages={3297--3311},
  doi={10.1139/p67-276},
}

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RIS Citation

TY  - JOUR
ID  - br09100s
AU  - Brancazio, P. J.
AU  - Cameron, A. G. W.
PY  - 1967
TI  - Abundance anomalies produced by nuclear reactions in stellar surface layers: II. Results and comparison with anomalies in peculiar A stars
JA  - Can. J. Phys.
VL  - 45
SP  - 3297
EP  - 3311
DO  - 10.1139/p67-276
ER  -

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