Could the low braking index pulsar PSR J1734-3333 evolve into a magnetar?

Z. -F. Gao; D. -L. Song; Y. -L. Liu; X. -D. Li; N. Wang; H. Shan

doi:10.1002/asna.201713436

paper

Could the low braking index pulsar PSR J1734-3333 evolve into a magnetar?

arXiv:1709.02734 · doi:10.1002/asna.201713436

Abstract

The low braking-index pulsar PSR J1734 $-$ 3333 could be born with superhigh internal magnetic fields $B_{in} \sim 1 0^{15} - 1 0^{16}$ G, and undergo a supercritical accretion soon after its formation in a supernova explosion. The buried multipole magnetic fields will merger into a dipole magnetic field. Since the magnetic flow transfers from the core to the crust of the pulsar, its surface dipole field grows quickly at a power-law form assumed until it saturates at the level of internal dipole field. The increase in surface dipole magnetic field results in the observed low braking index of $n = 0.9 (2)$ . Keeping an average field growth index $ε = 1.34 (6)$ , this pulsar will become a magnetar with surface dipole magnetic field at the equator $B_{d} \sim 2.6 (1) \times 1 0^{14}$ \,G and $\sim 5.3 (2) \times 1 0^{14}$ \,G after next 50\,kyrs and 100\,kys, respectively.

arXiv comment2017 Astron. Nachr. DOI:10.1002/asna.201713436

Could the low braking index pulsar PSR J1734-3333 evolve into a magnetar?

Abstract

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