Round 2: Tossup 4

Given these particles’ mean lifetime of 880 seconds and the time from freeze-out to the onset of BBNS, one can calculate (10[1])an abundance denoted Y. The timescale of these particles’ capture differentiates (10[1])two reactions that occur (10[1])in AGB stars and during supernovae, called the s- and r-processes. A different particle decays into one of these particles in the first step of the p-p chain. [emphasize] Above the Chandrasekhar (“chun-druh-SHAY-kur”) limit but below the TOV limit, these particles’ degeneracy pressure keeps massive (-5[1])stars from (-5[1])turning (10[1])into black holes. Pulsars are rapidly rotating members of a class of extremely dense stars (10[1])made of these particles. (10[2])For 10 points, name these subatomic particles with no charge. ■END■

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