The Nature of AX J0051-733 in the SMC: A Pulsar Born with Ultrastrong Magnetic Field?

Authors: Liu, Q.; Yan, J.; Li, X.; Hang, H.

Source: Astrophysics and Space Science, Volume 305, Number 2, October 2006 , pp. 133-138(6)

Publisher: Springer

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We investigate the nature of the pulsar of the Be/X-ray binary, AX J0051-733. Although the system has a very short orbital period, it meets the basic definition of Be/X-ray binaries. We argue that, in order to interpret such a short orbital period, the initial magnetic field strength of the pulsar must be between 4.2×1013–5×1015 G, if typical values of the parameters chosen. Thus, the pulsar was most likely born as a magnetar. We further suggest that magnetar descendants can also be found among the massive X-ray binaries with extremely short-orbit periods, in addition to among the X-ray binaries with very long pulse periods.

Keywords: AX J0051-733–stars; Be; Binaries; Close–pulsars; Emission-line; Individual; Neutron star–X-rays; Stars–stars

Document Type: Research Article


Affiliations: Email:

Publication date: October 1, 2006

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