Magnetic Fields May Drive Binary Star Formation, Simulations Suggest
New supercomputer simulations indicate that magnetic fields around newborn stars can remove angular momentum, allowing two protostars to spiral closer together and form binary systems. This research addresses a longstanding puzzle in stellar astrophysics about why binary star systems form so rapidly. Understanding binary formation is significant because the majority of stars in the universe exist in pairs or larger groupings.
Scientists have used supercomputer simulations to investigate the role magnetic fields play in the formation of binary star systems. The research suggests that magnetic fields surrounding protostars act as a braking mechanism, stripping away angular momentum that would otherwise cause the young stars to drift apart. Without this braking effect, the rotational forces in a collapsing gas cloud would typically prevent two protostars from drawing close enough to become gravitationally bound. By removing angular momentum, magnetic fields allow the two forming stars to spiral inward toward each other on timescales consistent with observed binary systems. The findings offer a potential resolution to a long-standing challenge in stellar formation theory, though the results are based on simulations and will require further observational confirmation.
What's missing
The article does not specify which research group conducted the study, the journal in which it was published, or whether the simulations have been peer-reviewed, making independent verification difficult.
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- Science DailyCenter
Magnetic fields may be the secret behind binary star formation
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