Annihilation Process of Neutrino Production in Stars

Details Annihilation Process of Neutrino Production in Stars Annihilation Process of Neutrino Production in Stars

Aug 1961

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1961phrv..123.1040c&link_type=abstract

Physical Review, vol. 123, Issue 3, pp. 1040-1050

Astronomy and Astrophysics

Astrophysics

49

Scientific paper

The rate at which the energy of a blackbody radiation is converted into neutrinos by the pair annihilation process e-+e+-->ν+ν¯ has been calculated. At T~6×109°K the relaxation time for such conversion process is around 100 sec for pure radiation. Since neutrinos have a very long mean free path (>>stellar dimensions) they will escape, thus carrying away the energy. This process therefore will be of astrophysical importance. The rate of energy loss dUdt is tabulated, as a function of temperature and density, together with the chemical potential, the pressure, and the electron-positron energy. This table should be useful for numerical integrations of stellar structure equations in the temperature range (0.5-10)×109 °K, and the density range 0-109 g/cm3.

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