Astronomers identify 1st twin stars doomed to collide in kilonova explosion

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Astronomers identify 1st twin stars doomed to collide in kilonova explosion
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Sharmila is a Seattle-based science journalist. She found her love for astronomy in Carl Sagan's The Pale Blue Dot and has been hooked ever since. She holds an MA in Journalism from Northeastern University and has been a contributing writer for Astronomy Magazine since 2017. Follow her on Twitter at @Sharmilakg.

An artist's depiction of a binary star system that will eventually end in two colliding neutron stars.

Moreover, astronomers previously thought that only one or two such systems would exist in spiral galaxies like our. Researchers of the latest study have now increased that estimate to 10, noting that these observations help them better understand the history, evolution and atypically calm deaths of stars in such systems.

This was a key finding that helped the team conclude that the primary neutron star ended as a dud supernova, the astronomers said. But this did not seem to have occurred in the intriguing system. To better understand what might have happened at the end of SGR 0755-2933's life, astronomers waded through thousands of models that described binary star systems resembling the one they were studying. They only found two that matched.

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