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Stars as Laboratories for Fundamental Physics - MPP Theory Group

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Numerical Neutrino Energy-Loss Rates 589<br />

C.4 Total Emission Rate<br />

The total neutrino energy-loss rate <strong>for</strong> helium is shown in Figs. C.4–C.6<br />

where the photoneutrino and pair-annihilation rates are from Schinder<br />

et al. (1987), the pl<strong>as</strong>ma process from Haft, Raffelt, and Weiss (1994),<br />

and bremsstrahlung (helium) from Itoh and Kohyama (1983)<br />

Fig. C.4. Contour plot <strong>for</strong> the total neutrino energy-loss rate ϵ ν per unit<br />

m<strong>as</strong>s <strong>for</strong> helium. The thin contours are at intervals of a factor of 10 <strong>for</strong> ϵ ν .<br />

The regions where the individual processes dominate are also indicated.

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