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A story of singular degeneracy

Astronomers have a choice of two models of how type Ia supernovae arise. The progenitor for one of these huge stellar explosions has now been discovered, bringing a definitive judgement a little closer.

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Figure 1: A degenerate's progress.


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van den Heuvel, E. A story of singular degeneracy. Nature 451, 776–777 (2008).

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