PAU camera
PAU camera
PAU camera
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Survey requirements• The precision to which the galaxy power spectrum can bemeasured depends on:• Sample variance: how many independent samples of therelevant scale (~100 Mpc/h for BAO) one has ⇒ volume• Shot noise (Poisson): how many galaxies included in eachsample ⇒ densityFeldman,Kaiser,Peacock,ApJ 426,23(1994)P(k): power spectrumn: galaxy density3