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chemical evolution 1cosmological simulations 1dwarf galaxies 1metallicity 1star formation histories 1

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20242026
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astro-ph.SR2025

A Low Metallicity Massive Contact Binary Star System Candidate in WLM identified by Hubble and James Webb Space Telescope imaging

Maude Gull, Daniel R. Weisz, Kareem El-Badry +15

We present archival HST and JWST ultraviolet through near infrared time series photometric observations of a massive minimal-contact binary candidate in the metal-poor galaxy WLM (…