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lyman-alpha forest 4baryon acoustic oscillations 3alcock-paczynski test 2DESI 2black hole binaries 1cosmological parameters 1dark energy 1DESI survey 1dual active galactic nuclei 1emulators 1exoplanet composition 1full-shape analysis 1

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astro-ph.EP2026

First planetesimals from DESI DR1: 12 highly metal-rich white dwarfs

Paula Izquierdo, Andrew Swan, Boris T. Gänsicke +43

The paper analyzes 12 highly metal‑rich white dwarfs from DESI DR1, measuring their photospheric metal abundances to infer the bulk composition of the accreted planetary debris, wh…