X-ray outbursts of AXPs and SGRs
Çalışkan, Şirin and Ertan, Ünal (2010) X-ray outbursts of AXPs and SGRs. In: Astrophysics of Neutron Stars 2010: A Conference in Honor of M. Ali Alpar, Çeşme, Izmir
Official URL: http://dx.doi.org/10.1063/1.3629514
We show that the X‐ray enhancement light curves of transient AXP∕SGRs can be reproduced by the active fallback disk model. We solve the diffusion equation for the relaxation of a disk that has been pushed back by a soft gamma‐ray burst. Our preliminary results indicate that a critical temperature around 1500 K leads to a thermal‐viscous instability in the fallback disks of all AXP∕SGRs. The effect of the instability on the light curves are different for transient and persistent sources due to different pre‐burst disk conditions in these systems.
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