See extragalactic background light on Wiktionary
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"ref": "2013 March 27, Tushna Commissariat, “Blazars help measure extragalactic background light”, in PhysicsWorld:",
"text": "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",
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"ref": "2015, Jonathan Biteau, David A. Williams, \"The extragalactic background light, the Hubble constant, and anomalies: conclusions from 20 years of TeV gamma-ray observations\", arXiv; (1502.04166) [14 February 2015]",
"text": "Ground-based observatories have been collecting 0.2 - 20 TeV gamma rays from blazars for about twenty years. These gamma rays can experience absorption along the line of sight due to interactions with the extragalactic background light (EBL). In this paper, we show that the gamma-ray optical depth can be reduced to the convolution product of an EBL kernel with the EBL intensity, assuming a particular form for the EBL evolution"
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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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Download raw JSONL data for extragalactic background light meaning in All languages combined (2.8kB)
This page is a part of the kaikki.org machine-readable All languages combined dictionary. This dictionary is based on structured data extracted on 2024-12-21 from the enwiktionary dump dated 2024-12-04 using wiktextract (d8cb2f3 and 4e554ae). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.
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