| http://www.w3.org/ns/prov#value | - cho were used to confirm that the supernova was a Type Ia and to unambiguously determine the particular class of explosion and therefore its energy.The Chandra data, along with XMM-Newton data obtained in 2000, was then independently used to calculate the amount of energy involved in the original explosion, using an analysis of the supernova remnant and state-of-the-art explosion models.
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