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Detection of a Debris Disk around an AXP with Spitzer

Zhongxiang Wang

MIT

Abstract:

We have detected of a debris disk around a young isolated neutron star (specifically, an AXP) using Spitzer data. There is a clear signature of thermal emission from a disk in the mid-IR (it is a completely distinct spectral component from the optical emission), and it is well-fit by an X-ray heated disk model (a passive, irradiated debris disk, not an accretion disk). This may well be the first detection of a supernova fallback disk.

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