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Table 1

Basic estimates for PSR B1931+24.

Stellar radius R = 10 km
Stellar mass M = 1,4 solar mass = 2.7 × 1030 kg
Stellar surface magnetic field (pole) B = 2.6 × 108 T
Observed period P = 0.813 s-1
Observed pulsation Ω = 7.728 s
Observed frequency shift when on s-2
Observed frequency shift when off s-2
Light cylinder radius Rlc = c/Ω = 3,879 × 107 m = 2,6 × 10-4 AU
Polar cap radius Rpc = RR/c)1/2 = 160 m
Goldreich-Julian current A
Kramer current ΔIpc = 8 × 1011 A

Semi-major axis for a 35-day orbit a35 = 3.49597 × 1010 m = 0.23 AU

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