Clumpy Winds and a Bursting X-ray Source: A Chandra Study of G296.1-0.5
Abstract
G296.1-0.5 is a bright SNR that, based on our recent studies, appears to be expanding into the wind of a Wolf-Rayet progenitor star. The composition shows unique signatures of CNO-cycle material, and the X-ray emission is suggestive of the clumpy structure expected in such winds. We have also discovered a bursting X-ray source in the field whose properties are similar to those of magnetars in outburst. Magnetars are thought to originate in massive stars such as the inferred progenitor of G296.1-0.5. Here we propose an ACIS observation to characterize the clumpy structure of the swept-up wind in G296.1-0.5 and to establish a high-precision location and/or an extremely sensitive limit on the quiescent luminosity of the variable X-ray source.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2010
- Bibcode:
- 2010cxo..prop.3122S