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Type Ia Supernova Remnants in the Large Magellanic Cloud

Presentation #116.69 in the session Stellar/Compact Objects.

Published onJul 01, 2023
Type Ia Supernova Remnants in the Large Magellanic Cloud

Type Ia supernovae are accepted to be the result of a thermonuclear detonation of a white dwarf star. They mark an important rung on the cosmic distance ladder and contributed to the discovery of the acceleration of the expansion of the universe. Despite their importance, the precise path to explosion remains in question between various single degenerate and double degenerate pathways. There is a growing class of Type Ia supernovae which show the interaction of circumstellar material and may point to the dominant progenitor channel. Here we will present the results of Chandra observations of the Type Ia supernova remnants (SNRs) N103B, 0509-67.5, and 0519-69.0 located in the Large Magellanic Cloud. We show the differences in their appearance and spectroscopy, and how we can demonstrate the presence or absence of circumstellar material in the remnants hundreds of years after the explosion.

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