Most Milky Way Runaway Stars Aren’t Born in Binaries, New Survey Finds
TL;DR
Spanish researchers using Gaia astrometry and the IACOB spectroscopic database analyzed 214 O-type runaway stars and found that most did not originate as binary companions; the fastest runaways tend to be single, while faster rotators are linked to binary-supernova ejections, indicating multiple ejection mechanisms. The study also identified 12 runaway binaries, including three X-ray binaries with neutron stars or black holes, underscoring complex pathways for how these stars leave their birthplaces and influence galactic evolution.
- Researchers Conduct the Largest Study of Runaway Stars in the Milky Way Universe Today
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- ICCUB astronomers lead the most ambitious study of runaway massive stars in the Milky Way UB - Universitat de Barcelona
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- Astronomers present the largest study on massive runaway stars including rotation and binarity in the Milky Way Institut d'Estudis Espacials de Catalunya - IEEC
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