Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1379..199c&link_type=abstract
ASTROPHYSICS OF NEUTRON STARS 2010: A Conference in Honor of M. Ali Alpar. AIP Conference Proceedings, Volume 1379, pp. 199-200
Astronomy and Astrophysics
Astrophysics
Diffusion, Gamma-Ray Sources (Astronomical), Viscosity, Pulsars, Temperature, Convection, Turbulence, And Diffusion, Gamma-Ray Sources, Gamma-Ray Bursts, Viscous And Viscoelastic Instabilities, Pulsars, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification
Scientific paper
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.
Caliskan Sirin
Ertan Unal
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