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sci.pulsar-timing-spindown Calculator
Calculates pulsar spin-down rate, characteristic age, and surface magnetic field from period P and period derivative dP/dt. Pulsar characteristic age τ = P/(2dP/dt) — the Crab Pulsar (τ ≈ 1,240 years) matches the 1054 AD supernova record.
Inputs
Period S
Time for one complete cycle (s). Period = 1 / frequency. A 50 Hz signal has a 20 ms period.
Period Derivative
Reference formula or conversion factor shown for context.
Results
surface magnetic field (G)
Sample size or count used in the calculation.
characteristic age (years)
Reference formula or conversion factor shown for context.
spin-down luminosity (erg/s)
Total power output of a star or light source in watts or solar luminosities. Relates to absolute magnitude.
B = 3.2×10¹⁹ √(P·Ṗ) G
Reference formula or conversion factor shown for context.
Crab pulsar
Reference formula or conversion factor shown for context.