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Hubble survey finds weak stellar winds in low-metallicity stars
Open Access Government · Music
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- University of Utah researchers used Hubble Space Telescope to observe 29 massive O-type stars across six nearby dwarf galaxies.
- Stars in low-metallicity environments show unexpectedly weak stellar winds and significant variations in iron abundance.
- Wind velocities decline sharply for stars with metallicities below 10% of solar abundance, falling below theoretical predictions.
- Metal-poor stars lose significantly less mass during their lifetimes, altering their evolutionary tracks and supernova output.
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