Radioactive isotopes in meteorites suggest that a supernova erupted in the vicinity of the solar system as it was forming.
therefore probably survived a supernova blastwave, according to the researchers, led by National Astronomical Observatory of Japan astrophysicist Doris Arzoumanian. The birth cocoon of the solar system likely acted as a buffer to this shockwave, they added.run out of the fuel for nuclear fusion, and their cores can no longer support themselves against gravitational collapse.
This material becomes the building blocks of the next generation of stars — but the blast wave that carries it outward can be strong enough to rip apart any newborn planetary systems that happen to be nearby. Stars are born in giant clouds of molecular gas that are composed of dense tendrils or filaments. Smaller stellar bodies, like, form along these filaments, while larger stars, like the one that would have exploded in this supernova, tend to form at points where these filaments cross each other.
Considering this, Arzoumanian and the team estimated that it would take around 300,000 years for the supernova shockwave to break up the dense filament shielding the infant solar system. Meteorites that are rich in radioactive isotopes broke apart from larger bodies like asteroids that were born in the first 100,000 of the solar system, while it was still in this dense filament.
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