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[84.05] Chandra Observations of G327.1-1.1: Evidence for a Disrupted PWN

P. Slane, B. M. Gaensler (CfA), E. van der Swaluw (FOM-IPP, Netherlands), J. P. Hughes (Rutgers), J. A. Jenkins (Harvard College Observatory)

We present an analysis of Chandra observations of the central region of the composite supernova remnant G327.1-1.1. Previous X-ray observations have established the nonthermal nature of the central emission, consistent with the interpretation that it is a pulsar-powered wind nebula, and identified a potential X-ray candidate for the pulsar itself. Our Chandra observations confirm the presence of this compact source and establish a slightly extended morphology that suggests we are seeing the effects of material outflows from near the wind termination shock. The compact source resides at the tip of a trail of emission that leads back to the bulk of the radio nebula, suggesting that the PWN morphology results from a combination of the pulsar motion and the passage of the reverse shock. We present the results of imaging and spectral studies that address this picture, and discuss this in the context of evolutionary scenarios for the structure and morphology of composite SNRs.

This work was supported by NASA contract NAS8-39703 and Chandra Grant GO1-2054X.

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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.