10 gcm$^{-3}$), the continuum electron density is quite low and the stellar rates should be close to the terrestrial values. At this value of temperature and density the calculated half-life for $\beta^{+}$-decay on $^{57}$Zn is 39.6 ms which is in excellent agreement with the measured value of 40 ms [@Vieira76].

  --------------- --------- ------------------------ ------------------- --------------- --------- ------------------------ -------------------
  $\rho Y_{e} $   $T_{9}$   $\lambda_{\beta^{+}} $   R($\beta^{+}/EC$)   $\rho Y_{e} $   $T_{9}$   $\lambda_{\beta^{+}} $   R($\beta^{+}/EC$)
  10              0.01      17.50                    5.6E+05             $10^{7}$        0.01      17.50                    6.5E+00
  10              1         19.54                    5.8E+04             $10^{7}$        1         19.54                    7.0E+00
  10              3         21.09                    1.8E+02             $10^{7}$        3         21.09                    7.0E+00
  10              5         22.18                    2.7E+01             $10^{7}$        5         22.23                    6.4E+00
  10              10        26.67                    2.4E+00             $10^{7}$        10        26.73                    1.9E+00
  10              30        137.09                   1.3E-01             $10^{7}$        30        137.09                   1.3E-01
  $10^{3}$        0.01      17.50                    7.9E+03             $10^{9}$        0.01      17.50                    3.5E-02
  $10^{3}$        1         19.54                    3.4E+04             $10^{9}$        1         19.54                    3.8E-02
  $10^{3}$        3         21.09                    1.8E+02             $10^{9}$        3         21.09                    3.9E-02
  $10^{3}$        5         22.18                    2.7E+01             $10^{9}$        5         22.28                    4.0E-02
  $10^{3}$        10        26.67                    2.4E+00             $10^{9}$        10        27.10                    4.1E-02
  $10^{3}$        30        137.09                   1.3E-01             $10^{9}$        30        143.88                   6.7E-02
  $10^{5}$        0.01      17.50                    3.2E+02             $10^{11}$       0.01      17.50                    5.8E-05
  $10^{5}$        1         19.54                    5.4E+02             $10^{11}$       1         19.54                    6.4E-05
  $10^{5}$        3         21.09                    1.6E+02             $10^{11}$       3         21.09                    6.8E-05
  $10^{5}$        5         22.23                    2.7E+01             $10^{11}$       5         22.28                    7.1E-05
  