Lyman-alpha emitters as tracers of the transitioning Universe

@article{Nilsson2011LymanalphaEA,
  title={Lyman-alpha emitters as tracers of the transitioning Universe},
  author={Kim K. Nilsson and Palle M{\o}ller},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  year={2011}
}
Of the many ways of detecting high redshift galaxies, the selection of objects due to their redshifted Ly-alpha emission has become one of the most successful. But what types of galaxies are selected in this way? Until recently, Ly-alpha emitters were understood to be small star-forming galaxies, possible building-blocks of larger galaxies. But with increased number of observations of Ly-alpha emitters at lower redshifts, a new picture emerges. Ly-alpha emitters display strong evolution in… 
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