energy generation equation
hamugeš-e âzâneš-e kâruž
Fr.: équation de génération d'énergie
Of a stellar → nuclear fusion, the equation describing the → energy generation rate as a function of → density and → temperature.
→ energy; → generation; → equation.
energy generation rate
nerx-e âzâneš-e kâruž
Fr.: taux de génération d'énergie
Of a stellar → nuclear fusion, the energy produced per unit mass per unit time, usually denoted ε (erg g-1s-1). The general form of the energy generation equation is: ε = ε0ρλTν, where ε0, ρ, and λ are constants over some efficiently restricted range of → temperature T, → density ρ, and → chemical composition. The temperature exponent ν is about 4, 15, and 40 for → proton-proton chain, → CNO cycle, and → triple alpha process, respectively.
→ energy; → generation; → rate.
1) A coming into being.
Verbal noun of → generate.
1) Act of regenerating; state of being regenerated.
→ re-; → generation.
second generation star
setâre-ye âzâneš-e dovom
Fr.: étoile de deuxième génération
A star whose formation is induced by an older star itself formed previously in the same region. See also → stimulated star formation, → sequential star formation, → triggered star formation.
→ second; → generation; → star.