Cosmic flexion

  title={Cosmic flexion},
  author={Evan J. Arena and David M. Goldberg and David Bacon},
  journal={Physical Review D},
Cosmic flexion, like cosmic shear, is a correlation function whose signal originates from the large-scale structure of the Universe. Building on the observational success of cosmic shear, along with the unprecedented quality of large-scale cosmological datasets, the time is ripe to explore the practical constraints from cosmic flexion. Unlike cosmic shear, which has a broad window function for power, cosmic flexion is only measurable on small scales and therefore can uniquely place constraints on… 

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    Reports on progress in physics. Physical Society
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