Question

quasars emit significant amounts of radiation from the lyman-alpha transition. when the spectrum is observed on earth, it is found that the lyman-alpha line is accompanied by many absorption lines, called the lyman-alpha forest. what is the origin of these lines?

Answer 1

The Lyman-alpha absorption strains withinside the quasar spectra end result from intergalactic gas by which the galaxy or quasar's mild has traveled.

Infalling gas found, star-forming galaxies probable number one electricity supply of Lyman-alpha radiation emitted from big H₂ gas blobs. Billions of lightyears away, big clouds of hydrogen gas produce a unique sort of radiation, a form of ultraviolet mild referred to as Lyman-alpha emissions. The Lyman-alpha absorption strains withinside the quasar spectra end result from intergalactic gas by which the galaxy or quasar's mild has traveled.

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