An Etymological Dictionary of Astronomy and Astrophysics

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Lyman alpha forest

جنگل ِ لایمن-‌آلفا

jangal-e Lyman-alpha (#)

Fr.: forêt Lyman alpha

The appearance of many differentially → redshifted→ Lyman alpha lines in → absorption in a → quasar's → spectrum, caused by intervening → hydrogen clouds along our → line of sight to the quasar.

→ Lyman; → forest.

An Etymological Dictionary of Astronomy and Astrophysics
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