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Lyman-alpha emitter

(LAE, Lyman-alpha emitting galaxy)
(redshifted galaxy emitting the Lyman alpha line)

A Lyman-alpha emitter (LAE or Lyman-alpha emitting galaxy) is a galaxy detected via the apparently-redshifted Lyman alpha, the first spectral line of the Lyman series. Given the confidence that the observed line is Lyman alpha, the redshift is:

1 + z = ————————

The prominent Lyman-alpha line is assumed to be evidence of star formation. Surveys of such galaxies reveal the star formation history of the universe.

(galaxy type,Lyman series,star formation,redshift)
LAELAE J095950.99+021219.1Lyman-alpha emittergeneral prefix for LAEs

Referenced by:
star formation (SF)