Large-scale structure in the Lyman-α forest: a new technique

  title={Large-scale structure in the Lyman-$\alpha$ forest: a new technique},
  author={Jochen Liske and John K Webb and R. F. Carswell Unsw and Sydney and Ioa and Cambridge},
  journal={Monthly Notices of the Royal Astronomical Society},
ABSTRA C T We present a new technique for detecting structure on Mpc scales in the Lya forest. The technique is easy to apply in practice since it does not involve absorption-line fitting, but rather is based on the statistics of the transmitted flux. It identifies and assesses the statistical significance of regions of overdense or underdense Lya absorption and is fairly insensitive to the quality of the data. Using extensive simulations, we demonstrate that the new method is significantly… 

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