Chandra Observations of the Bright Eastern Knot of Puppis A

Details Chandra Observations of the Bright Eastern Knot of Puppis A Chandra Observations of the Bright Eastern Knot of Puppis A

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003head....7.1024f&link_type=abstract

American Astronomical Society, HEAD meeting #7, #10.24; Bulletin of the American Astronomical Society, Vol. 35, p.864

Astronomy and Astrophysics

Astronomy

Scientific paper

We present an observation of the Bright Knot at the eastern edge of the Puppis A supernova remnant with the Chandra ACIS-S detector. The Chandra image clearly shows the "indented" morphology in this region that suggests a blast wave impacting a dense cloud of material, and reveals details of the substructure. Hardness variations are evident from the spectral imaging, and spectral analysis shows a clear temperature gradient increasing from about 0.3 keV at the the eastern edge (nearest the blast wave) up to 0.6 keV toward the interior. The element abundances are at the solar values, consistent with the knot being an inhomogeneity in the interstellar medium. We discuss the results in the context of possible heating by reflected shocks.
This work was prepared under NASA contract NAS8-01129.

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