Fallback Debris Disks Around Neutron Stars

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

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30822c&link_type=abstract

Spitzer Proposal ID #30822

Computer Science

Scientific paper

Our Spitzer/IRAC discovery of a dusty debris disk around the young neutron star 4U 0142+61 is the first detection of a fallback disk around a neutron star. Fallback, the notion that some material from a supernova explosion could remain bound to the compact remnant, is a general prediction of core-collapse supernova models, yet until now there were few if any meaningful observational constraints on the size (or existence) of such disks. Here we propose to test the ubiquity of such disks with deep IRAC observations of two young neutron stars, each a representative of a different class of object (a rotation-powered pulsar and a radio-quiet neutron star in a supernova remnant). We will examine whether fallback disks are common to all neutron stars or depend on the factors that separate these classes. Our proposed observations will pave the way for future surveys and in-depth investigations of individual objects.

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