Last Updated：2025/11/30

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All the accumulated radiation in the universe due to star formation processes, plus a contribution from active galactic nuclei (AGNs).

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extragalactic background light

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Source Word

extragalactic background light

Noun

uncountable

Japanese Meaning

星形成過程によって生じた宇宙全体に蓄積された放射線と、活動銀河核（AGN）からの寄与を含む背景光。

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To estimate the history of star formation, researchers model how the extragalactic background light, the total accumulated radiation from star formation processes plus a contribution from active galactic nuclei (AGNs), absorbs and redistributes starlight over cosmic time.

Google Translation / DeepL Translation

星形成の歴史を推定するために、研究者たちは星形成過程による蓄積放射と活動銀河核（AGN）からの寄与を含む銀河外背景光が、宇宙の時を通じて恒星の光を吸収して再分配する仕組みをモデル化します。

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Sense（1）

An international group of researchers has developed a new way to measure accurately the extragalactic background light (EBL) that fills the universe. The technique involves measuring the attenuation of high-energy gamma rays from distant blazars and it could improve our understanding of how galaxies form and evolve, as well as how the universe has expanded since the Big Bang

Google Translation / DeepL Translation

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extragalactic background light

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