Modelling projection effects in optically selected cluster catalogues

  title={Modelling projection effects in optically selected cluster catalogues},
  author={Matteo Costanzi and Eduardo Rozo and Eli S. Rykoff and Arya Farahi and Tesla E. Jeltema and August E. Evrard and Adam B. Mantz and Daniel Gruen and Rachel Mandelbaum and Joseph DeRose and Thomas McClintock and T. N. Varga and Y. Zhang and Jochen Weller and Risa H. Wechsler and Michel Aguena},
  journal={Monthly Notices of the Royal Astronomical Society},
The cosmological utility of galaxy cluster catalogues is primarily limited by our ability to calibrate the relation between halo mass and observable mass proxies such as cluster richness, X-ray luminosity or the Sunyaev-Zeldovich signal. Projection effects are a particularly pernicious systematic effect that can impact observable mass proxies; structure along the line of sight can both bias and increase the scatter of the observable mass proxies used in cluster abundance studies. In this work… 

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