An Evolved Composite SNR: A Study of 0453-68.5

Details An Evolved Composite SNR: A Study of 0453-68.5 An Evolved Composite SNR: A Study of 0453-68.5

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011head...12.3404b&link_type=abstract

American Astronomical Society, HEAD meeting #12, #34.04

Astronomy and Astrophysics

Astronomy

Scientific paper

We present results from Chandra imaging spectroscopic analysis of
the LMC composite SNR 0453-68.5, giving constraints on temperature,
elemental abundances, and equilibrium states. We find that most of the
shell emission is best fit by a two temperature model, consisting of a
relatively high-temperature (kT 0.4) nonequilibrium component and a
lower-temperature (kT 0.1) equilibrium component. Elemental
abundances, in nearly all cases, are those expected for the LMC, and we
see no evidence of ejecta emission. We also report a detection of the
central pulsar powering the synchrotron emission from the PWN and
present evidence that the PWN and the reverse shock have interacted.
Despite the remnant's asymmetric morphology, we show that the initial
explosion was likely highly symmetric.

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