Supernova Remnants: Homes for Young Neutron Stars

Physics

Scientific paper

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Chandra Proposal Id #04500320

Scientific paper

Composite supernova remnants are the expected products of Type II supernovae, yet they comprise less than 15% of the known remnants in the Galaxy. The range of synchrotron core parameters provide a crucial window on the physics of stellar collapse, while the surrounding shell offers an age estimate as well as an assay of the elements produced in the explosion. G16.7+0.1 & G351.2+0.1 are small-diameter composite remnants containing weak radio cores; the former has recently been detected with XMM, while mid-infrared observations of the latter show that its inverted radio spectral index extends at least to 20 microns. We propose to observe both remnants in order to define the nature of their pulsar wind nebulae and to constrain the parameters of the neutron stars which power them.

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