Galaxy number counts at second order: an independent approach

Understand

Next generation surveys will be capable of determining cosmological parameters beyond percent level.

• To match this precision, theoretical descriptions should look beyond the linear perturbations to approximate the observables in large scale structure.
• A quantity of interest is the Number density of galaxies detected by our instruments.
• This has been focus of interest recently, and several efforts have been made to explain relativistic effects theoretically, thereby testing the full theory.