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arXiv · 1101.5669

An X-ray Investigation of Three Supernova Remnants in the Large Magellanic Cloud

Matthew D. Klimek·S. D. Points·R. C. Smith·R. L. Shelton·R. Williams
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Abstract

We have investigated three SNRs in the LMC using multi-wavelength data. These SNRs are generally fainter than the known sample and may represent a previously missed population. One of our SNRs is the second LMC remnant analyzed which is larger than any Galactic remnant for which a definite size has been established. The analysis of such a large remnant contributes to the understanding of the population of highly evolved SNRs. We have obtained X-ray images and spectra of three of these recently identified SNRs using the XMM-Newton observatory. These data, in conjunction with pre-existing optical emission-line images and spectra, were used to determine the physical conditions of the optical- and X-ray-emitting gas in the SNRs. We have compared the morphologies of the SNRs in the different wavebands. The physical properties of the warm ionized shell were determined from the H-alpha surface brightness and the SNR expansion velocity. The X-ray spectra were fit with a thermal plasma model and the physical conditions of the hot gas were derived from the model fits. Finally, we have compared our observations with simulations of SNR evolution.

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Matthew D. Klimek, S. D. Points, R. C. Smith, R. L. Shelton, R. Williams. 2011-01-29. An X-ray Investigation of Three Supernova Remnants in the Large Magellanic Cloud. https://doi.org/10.1088/0004-637x%2F725%2F2%2F2281

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