Artist's impression of a yellow supergiant in a close binary with a blue, main sequence companion star (IMAGE)

Royal Astronomical Society

Artist's impression of a yellow supergiant in a close binary with a blue, main sequence companion star

Caption

Artist's impression of a yellow supergiant in a close binary with a blue, main sequence companion star, similar to the properties derived for the 2019yvr progenitor system in Kilpatrick et al. (2021). If the progenitor system to 2019yvr was in such a binary, it must have had a very close interaction that stripped a large amount of hydrogen from the yellow supergiant in the last 100 years before it exploded as a supernova.

Credit

Kavli IPMU / Aya Tsuboi

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