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2009 WRI World Congress on Computer Science and Information Engineering
Monte Carlo Simulation for the Formation of Magnetars
Los Angeles, California USA
March 31-April 02
ISBN: 978-0-7695-3507-4
Anomalous X-ray pulsars and Soft Gamma-ray repeaters are young pulsars with the dim radio emission, and they have been rapidly spun-down to the range from 5 to 12 s. Many experts proposed that they are neutron stars with ultra-strong magnetic fields ($\geq10^{14}$ G). From the modified spin down relation of pulsars$\dot{P}\propto P^{2-\rm n}$, we find that Vela pulsar would evolve into the classes of magnetars under some assumptions that pulsars lose its rotational energy only by magnetic dipole radiation and braking index is a constant. The evolution of inclination angle $\theta$ between pulsars' rotational and magnetic axes may be responsible for the increasing of magnetic field component. The results of Monte Carlo simulations show that a low braking index of $\rm n\sim 1.3-1.6$ can easily result in the formation of magnetars.
Citation:
Wen-Cong Chen, "Monte Carlo Simulation for the Formation of Magnetars," csie, vol. 2, pp.10-13, 2009 WRI World Congress on Computer Science and Information Engineering, 2009
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