Fallback Debris Disks Around Young Neutron Stars

Details Fallback Debris Disks Around Young Neutron Stars Fallback Debris Disks Around Young Neutron Stars

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40925c&link_type=abstract

Spitzer Proposal ID #40925

Physics

Scientific paper

Our Spitzer/IRAC discovery of a dusty debris disk around the young neutron star 4U 0142+61 is likely the first detection of a supernova fallback disk around a neutron star. Here we propose to test three aspects of this hypothesis with targeted Spitzer observations: (1) IRAC imaging of the magnetar 1E 2259+586, to see if debris disks are ubiquitous; (2) deep MIPS 24 micron imaging of 4U 0142+61 to probe the long-wavelength tail of the disk and measure its radial extent; and (3) IRAC subarray observations of 4U 0142+61 designed to detect for 8.7 sec pulsations or set an upper limit on their amplitude. This last measurement will allow us to definitively discriminate whether the mid-IR emission arises from an X-ray heated debris disk or the pulsar magnetosphere.

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