An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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nuclear statistical equilibrium (NSE)
  ترازمندی ِ آماری ِ هسته‌ای  
tarâzmandi-ye âmâri-ye haste-yi
Fr.: équilibre statistique nucléaire  

In → nucleosynthesis models, the condition in which all nuclear species are in equilibrium under exchange of → protons and → neutrons. Matter in nuclear statistical equilibrium is characterized by a large abundance of iron peak nuclei.

In such equilibria abundance of each nuclide can be calculated from
repeated application of → <i><a class="linkVoir" href="/terms/saha-equation/">Saha equation</a></i>.

See also: → nuclear; → statistical; → equilibrium.