An Introduction to Modern Astrophysics · Problem 16.20

General Relativity and Black Holes — Carroll & Ostlie

Physics — Astrophysics · pulsar-magnetic-field

Problem

The Geminga pulsar has a period of

P = 0.237

s and a period derivative of

\dot{P} = 1.1 \times 10^{-14}

. Assuming that

\theta = 90^\circ

, estimate the magnetic field strength at the pulsar's poles.