A phenomenological model of the magnetic field re-emergence in magnetars and discrepancy between the kinematic and characteristic ages

Rostislav D. Nikandrov, Sergei B. Popov

Robust age measurements for isolated neutron stars (NSs) are not easily available. That is why, often the characteristic age ${\tau }_{\mathrm{ch}}=P/2\dot{P}$ is used as a proxy. Here $P$…