* Astronomy

Title: On The Evolution of The Radio Pulsar PSR J1734-3333
Authors: S. Caliskan (1), U. Ertan (1), M. A. Alpar (1), J. E. Truemper (2), N. D. Kylafis (3) ((1) Sabanci University, (2) MPE, (3) University of Crete)

Recent measurements showed that the period derivative of the 'high-B' radio pulsar PSR J1734-3333 is increasing with time. For neutron stars evolving with fallback disks, this rotational behaviour is expected in certain phases of the long-term evolution. Using the same model as employed earlier to explain the evolution of anomalous X-ray pulsars and soft gamma-ray repeaters, we show that the period, the first and second period derivatives and the X-ray luminosity of this source can simultaneously acquire the observed values for a neutron star evolving with a fallback disk. We find that the required strength of the dipole field that can produce the source properties is in the range of 1 - 5 x 10^{12} G on the pole of the neutron star. When the model source reaches the current state properties of PSR J1734-3333, accretion onto the star is not allowed yet, since the inner disk is not able to penetrate the light cylinder in this phase, allowing the source to operate as a regular radio pulsar. Our results imply that PSR J1734-3333 is at an age of ~ 3 x 10^4 years. Such sources will have properties like the X-ray dim neutron stars or transient AXPs at a later epoch of weak accretion from the diminished fallback disk.

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