Using Lyα Absorption to Measure the Intensity and Variability of z ∼ 2.4 Ultraviolet Background Light
(2025)
Journal Article
Weiss, L. H., Gebhardt, K., Davis, D., Mentuch Cooper, E., Lujan Niemeyer, M., Qezlou, M., Mirza Khanlari, M., Ciardullo, R., Farrow, D., Gawiser, E., Gazagnes, S., Gronwall, C., Hill, G. J., & Schneider, D. P. (2025). Using Lyα Absorption to Measure the Intensity and Variability of z ∼ 2.4 Ultraviolet Background Light. The Astrophysical journal, 983(1), Article 72. https://doi.org/10.3847/1538-4357/adc0f9
We present measurements of z ∼ 2.4 ultraviolet (UV) background light using Lyα absorption from galaxies at z ∼ 2–3 in the Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) database. Thanks to the wide area of this survey, we also measure the var...
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