Evolution of the long-period pulsar PSR J0901−4046

The fallback disc model predicted that anomalous X-ray pulsars (AXPs) and soft-gamma repeaters (SGRs) will evolve to isolated long period before the discovery of first two long-period (LPPs) this year. Unlike normal radio pulsars, LPPs show transient pulsed-radio epochs with unusual variable pulse shapes, similar behaviour few emitting AXP/SGRs. We present properties recently discovered second LPP, PSR J0901-4046 ($P \simeq 76$ s), are obtained as a result evolution in interaction disc, we had already shown for GLEAM-X J162759.5-523504.3 1091$ s). While there is only an upper limit derivative, $\dot{P}$, J162759.5-523504.3, $\dot{P}$ has been measured, providing better constraints evolutionary models. can produce source dipole moment $\mu 10^{30}$ G cm$^3$. results not sensitive initial pulsar period. Our indicate went through AXP/SGR epoch at age $10^4$ yr, $\sim (6 - 8) \times 10^5$ yr old present.