Pulsar spin-down
= Pulsar spin-down
{title2=$L_{\rm sd}=4\pi^2 I\dot P/P^3$}
Loss of a rotating <neutron star>'s <angular momentum> and rotational <energy> through electromagnetic torque and a magnetized outflow. For constant <moment of inertia> $I$, differentiating $E_{\rm rot}=I(2\pi/P)^2/2$ gives the displayed positive loss rate when $\dot P>0$. It is not the same as the measured <radiation> <luminosity> in any one observing band.