"High-field" pulsars torqued by accretion disk?

Details "High-field" pulsars torqued by accretion disk? "High-field" pulsars torqued by accretion disk?

2006-11-02

arxiv.org/abs/astro-ph/0611041v1

Astronomy and Astrophysics

Astrophysics

6 pages, 1 figures, submitted to "Advances in Space Research" (Proceedings of COSPAR 2006)

Scientific paper

The nature of AXPs/SGRs (anomalous X-ray pulsars/soft $\gamma$-ray repeaters) and high field radio pulsars is still unclear even in the magnetar and/or accretion models. The detection of radio emission from AXP XTE J1810$-$197 and the discovery of a debris disk around AXP 4U 0142+61 might shed light on the problem. We propose that AXPs/SGRs could be pulsars that have magnetic field $B\lesssim 10^{13} \mathrm{G}$ as normal pulsars, but in accretion environments. We investigate these issues under the accretion model and find that two of the AXPs/SGRs might be low mass quark stars if all AXPs and SGRs are likely grouped together.

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