VLA proper motion constraints on the origin, age, and potential magnetar future of PSR J1734−3333

Context. The characteristic age of PSR J1734−3333 estimated from its current spin down rate implies that it is a young pulsar ( τ c = 8.1 kyr). However, the time derivative spin-down differs markedly assumed for normal radio pulsars, meaning actual uncertain. G354.8−0.8 supernova remnant (SNR) whose centre located 21′ away pulsar, and which has morphology suggests an association with pulsar. Aims. We aim to assess likelihood between or other nearby SNRs quantitatively, objective shedding light on real this Methods. Observations Karl G. Jansky Very Large Array were carried out in 2015 2019 allow precise astrometric measurements consequently proper motion estimate Results. was found be μ α 10 ± mas yr −1 δ −29 11 (error bars are 1- σ ). Though marginal, detection rules because means not moving SNR. No SNR consistent measured could found. also present first measurement spectral index −1.1 0.3, 1.5 3.0 GHz. Conclusions. produced by birth have already faded undetectable brightness, estimates suggest timescales − 100 kyr. This considerations lead us conclude possibly older than 45 rotational properties place standard pulsars magnetars, we interpret our result context possible future life as magnetar