Eros Vanzella

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The nature of an ultra-faint galaxy in the cosmic dark ages seen with JWST - Nature

May 17, 2023 | nature.com | Guido Roberts-Borsani |Wenlei Chen |Eros Vanzella |Pietro Bergamini |Marco Castellano |Karl Glazebrook | +19 more

AbstractIn the first billion years after the Big Bang, sources of ultraviolet (UV) photons are believed to have ionized intergalactic hydrogen, rendering the Universe transparent to UV radiation. Galaxies brighter than the characteristic luminosity L* (refs. 1,2) do not provide enough ionizing photons to drive this cosmic reionization.

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