4 papers · 1 filter
Suzaku Observation of AXP 1E 1841-045 in SNR Kes 73
M. Morii, S. Kitamoto, N. Shibazaki +7
Anomalous X-ray pulsars (AXPs) are thought to be magnetars, which are neutron stars with ultra strong magnetic field of -- G. Their energy spectra below 10…
Magnetars as cooling neutron stars with internal heating
A. D. Kaminker, D. G. Yakovlev, A. Y. Potekhin +3
We study thermal structure and evolution of magnetars as cooling neutron stars with a phenomenological heat source in a spherical internal layer. We explore the location of this la…
Pulse Profile Change Possibly Associated with a Glitch in an Anomalous X-Ray Pulsar 4U 0142+61
Mikio Morii, Nobuyuki Kawai, Noriaki Shibazaki
We report a glitch-like pulse frequency deviation from the simple spin-down law in an anomalous X-ray pulsar (AXP) 4U 0142+61 detected by ASCA observations. We also found a signifi…
Vortex Configurations, Oscillations and Pinning in Neutron Star Crusts
M. Hirasawa, N. Shibazaki
The rotating neutron superfluid in the inner crust of a neutron star is threaded by quantized vortex lines. The pinning force from lattice nuclei and the Magnus force from neutron…