The full-sky relativistic correlation function and power spectrum of galaxy number counts. Part I: theoretical aspects
1. August 2017
V.Tansella, C.Bonvin, R.Durrer, B.Gosh and E.Sellentin (2018) JCAP 1803 19
We derive an exact expression for the correlation function in redshift shells including all the relativistic contributions. This expression, which does not rely on the distant-observer or flat-sky approximation, is valid at all scales and includes both local relativistic corrections and integrated contributions, like gravitational lensing.