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Astronomy

An elementary puzzle

A type Ia supernova has no hydrogen around it. But hydrogen gas has now been found in the vicinity of a supernova that otherwise fits the type Ia classification. Might this offer clues to the origin of these objects?

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Figure 1: Type Ia, type I½.

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Baron, E. An elementary puzzle. Nature 424, 628–629 (2003). https://doi.org/10.1038/424628a

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  • DOI: https://doi.org/10.1038/424628a

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