Constraints on ultralight axions from the DESI DR1 full shape, $Planck$, and ACT datasets
Aps.org·October 5, 2026
We present updated bounds on ultralight axions (ULAs) as a subcomponent of dark matter, derived from the full-shape analysis of the Dark Energy Spectroscopic Instrument (DESI) Data Release 1 galaxy power spectra combined with cosmic microwave background (CMB)…
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