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    A spectroscopic quadruple as a possible progenitor of sub-Chandrasekhar type Ia supernovae

    Binaries have received much attention as possible progenitors of type Ia supernova explosions1, but long-term gravitational effects2,3 in tight triple or quadruple systems could also play a key role in producing ...

    Thibault Merle, Adrian S. Hamers, Sophie Van Eck, Alain Jorissen in Nature Astronomy (2022)