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New Research Unveils Magnetic Fields' Role in Black Hole Mergers

11/13/2025

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Summary

Story summary

Researchers from the Flatiron Institute show magnetic fields can eject stellar material during a supernova, lowering the resulting black hole's mass into the mass gap.
This mechanism could explain the 2023 GW231123 black hole merger, which involved black holes of 100 and 140 solar masses.
The merger's gravitational waves were detected from a source 7 billion light-years away.
The findings may reshape our understanding of black hole evolution and formation.

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Story summary

Researchers from the Flatiron Institute show magnetic fields can eject stellar material during a supernova, lowering the resulting black hole's mass into the mass gap.
This mechanism could explain the 2023 GW231123 black hole merger, which involved black holes of 100 and 140 solar masses.
The merger's gravitational waves were detected from a source 7 billion light-years away.
The findings may reshape our understanding of black hole evolution and formation.