Image of the accretion disk: A snapshot of the binary star system before the violent supernova explosion blew it to pieces. This material relates to a paper that appeared in the 18 August 2017, issue of Science, published by AAAS. The paper, by S. Vennes at Astronomical Institute of Czech Academy of Sciences in Ondrejov, Czech Republic, and colleagues was titled, "An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova."
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