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Pramana

, Volume 15, Issue 2, pp 145–151 | Cite as

Nuclear reaction rate in Debye-Hückel electrolytic plasma in stellar interiors

  • H L Duorah
  • A E Md Khairozzaman
Astrophysics

Abstract

The transmission probability of charged particle reactions in a stellar plasma is examined by considering the effective potential between the interacting charges as having an exponential factor in the Coulomb term arising out of the spherical distribution of electrons with its uniform background of positive charges (Debye-Hückel electrolyte). The expression for the ratio of this transmission probability to that due to pure Coulomb field, called the enhancement factor, is then obtained. Thermonuclear reactions of astrophysical interest such as12C(α, γ)16O and16O(α, γ)20 Ne are then considered. Our enhancement factor in the12C(α, γ)16O reaction rate is found to agree reasonably well with those calculated from the expression given by Alastuey and Jancovici.

Keywords

Thermonuclear reactions enhancement factor stellar interiors nuclear reaction rate Debye-Hückel electrolyte 

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References

  1. Alastuey A and Jancovici B 1978Astrophys. J. 226 1034CrossRefADSGoogle Scholar
  2. Blatt J M and Weisskopf V 1952Theoretical Nuclear Physics (New York: John Wiley and Sons, 1952)MATHGoogle Scholar
  3. Cox J P, and Giuli T R 1968Principles of Stellar Structure (New York: Gordon and Breach)Google Scholar
  4. Duorah H L and Kushwaha R S 1963Astrophys. J. 137 566CrossRefADSGoogle Scholar
  5. Fowler W A and Hoyle F 1964Astrophys. J. Suppl. No. 9 121Google Scholar
  6. Ito N, Totsuji H and Ichimaru S 1977Astrophys. J. 218 477CrossRefADSGoogle Scholar
  7. Jackson J D 1978Classical Electrodynamics (New Delhi: Wiley Eastern Ltd.)Google Scholar
  8. Mitler H 1977Astrophys. J. 212 513CrossRefADSGoogle Scholar
  9. Salpeter E E 1954Aust. J. Phys. 7 343ADSGoogle Scholar

Copyright information

© the Indian Academy of Sciences 1980

Authors and Affiliations

  • H L Duorah
    • 1
  • A E Md Khairozzaman
    • 1
  1. 1.Department of PhysicsGauhati UniversityGauhatiIndia

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