| 1 | A Two-Temperature Supernova Fallback Disk Model for Anomalous X-ray Pulsars显示文摘We present a case study of the relevance of the radially pulsational instability of a two-temperature accretion disk around a neutron star to anomalous X-ray pulsars (AXPs). Our estimates are based on the approximation that such a neutron star disk with mass in the range of 10-6-10-5 M⊙ is formed by supernova fallback. We derive several peculiar properties of the accretion disk instability: a narrow interval of X-ray pulse periods; lower X-ray luminosities; a period derivative and an evolution time scale. All these results are in good agreement with the observations of the AXPs. | YeLu K.S.Cheng | 2002 | Chinese Journal of Astronomy and Astrophysics2002，2，2： | 0 |
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