Gamow peak
E627311
The Gamow peak is a concept in nuclear astrophysics that identifies the most probable energy range at which nuclear fusion reactions occur in stars, balancing quantum tunneling probability with the thermal energy distribution of particles.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical concept
ⓘ
concept in nuclear astrophysics ⓘ |
| appliesTo |
CNO cycle reactions
ⓘ
charged-particle nuclear reactions ⓘ helium burning reactions ⓘ proton–proton fusion ⓘ |
| arisesFrom | product of tunneling probability and thermal distribution ⓘ |
| assumes | nonrelativistic Maxwell–Boltzmann statistics ⓘ |
| balances |
quantum tunneling probability
ⓘ
thermal energy distribution of particles ⓘ |
| characterizes | effective energy window for charged-particle reactions ⓘ |
| context | thermonuclear reactions in plasmas ⓘ |
| contrastsWith | Coulomb barrier height ⓘ |
| dependsOn |
charges of reacting nuclei
ⓘ
reduced mass of reacting nuclei ⓘ temperature of stellar plasma ⓘ |
| describes |
energy window where fusion reactions are most likely
ⓘ
most probable energy range for nuclear reactions in stars ⓘ |
| energyRange | typically in the keV range for stellar interiors ⓘ |
| field |
nuclear astrophysics
ⓘ
stellar astrophysics ⓘ |
| hasComponent |
Gamow factor
NERFINISHED
ⓘ
Maxwell–Boltzmann factor NERFINISHED ⓘ |
| hasQuantityType | energy ⓘ |
| helpsDetermine | relevant laboratory energies for measuring stellar reaction cross sections ⓘ |
| helpsExplain | why low-energy nuclear reactions dominate in stars ⓘ |
| isImportantFor |
modeling stellar evolution
ⓘ
predicting neutrino fluxes from stars ⓘ understanding stellar lifetimes ⓘ |
| mathematicallyCharacterizedBy | peak of integrand in thermally averaged reaction rate ⓘ |
| namedAfter | George Gamow NERFINISHED ⓘ |
| relatedConcept |
Gamow factor
NERFINISHED
ⓘ
astrophysical S-factor ⓘ |
| relatedTo |
Coulomb barrier
NERFINISHED
ⓘ
Maxwell–Boltzmann distribution NERFINISHED ⓘ nuclear fusion ⓘ quantum tunneling ⓘ stellar nucleosynthesis ⓘ |
| typicalEnvironment |
hot astrophysical plasmas
ⓘ
stellar cores ⓘ |
| usedBy |
astrophysicists
ⓘ
nuclear physicists ⓘ |
| usedIn |
big bang nucleosynthesis calculations
ⓘ
calculation of thermonuclear reaction rates ⓘ modeling of stellar energy generation ⓘ solar fusion reaction calculations ⓘ |
Referenced by (1)
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