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Stellar Reaction Rates for ^(28)Si

Lyons, P. B. and Toevs, J. W. and Barnes, C. A. and Fowler, William A. and Sargood, D. G. (1970) Stellar Reaction Rates for ^(28)Si. Astrophysical Journal, 159 (3). pp. 913-917. ISSN 0004-637X.

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Stellar rates for the reactions ^(27)Al(p,-y)^(28)Si and ^(24)Mg(ɑ,-y)^(28)Si have been calculated from new cross- section data for these reactions. The contributions to the interaction rates, (σv)_(py) and (σv)_(ay), and to the corresponding photodisintegration rates, λ_(yp) and λ_(ya), from the excited states of ^(27)Al, ^(24)Mg, and ^(28)Si are discussed. The calculated interaction rates, N_A(σv), are listed for temperatures from 0.1 X 10^9º to 5.0 X 10^9° K; two- and four-parameter fits are given for N_A(σv) as a function of temperature.

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Additional Information:© 1970 American Astronomical Society. Supported in part by the National Science Foundation [GP-9114) and the Office of Naval Research [Nonr-220(47)]. The authors wish to acknowledge the assistance of their colleagues in the Kellogg Radiation Laboratory, particularly B.A. Zimmerman. Informative discussions with Dr. J. W. Truran, on methods for estimating the excited-state interaction rates, are gratefully acknowledged.
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Office of Naval Research (ONR)Nonr-220(47)
Issue or Number:3
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Official Citation:Stellar Reaction Rates for ^{28}Si Lyons, P. B.; Toevs, J. W.; Barnes, C. A.; Fowler, William A.; Sargood, D. G. Publication: Astrophysical Journal, vol. 159, p.913 (ApJ Homepage) Publication Date: 03/1970.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60127
Deposited By: Ruth Sustaita
Deposited On:11 Sep 2015 04:53
Last Modified:03 Oct 2019 08:53

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