4.7 Article

Numerical complexity of the joint nulled weak-lensing probability distribution function

Journal

PHYSICAL REVIEW D
Volume 105, Issue 4, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.105.043537

Keywords

-

Funding

  1. SPHERES of the French Agence Nationale de la Recherche [ANR-18-CE31-0009]
  2. Fondation MERAC
  3. CNES
  4. Agence Nationale de la Recherche (ANR) [ANR-18-CE31-0009] Funding Source: Agence Nationale de la Recherche (ANR)

Ask authors/readers for more resources

In tomographic cosmic shear surveys, a nulling transformation simplifies the correlation structure and enables accurate predictions of the one-point distribution. This transformation reduces numerical complexity and facilitates joint PDF estimation.
In the context of tomographic cosmic shear surveys, there exists a nulling transformation of weak lensing observations (also called BNT transform) that allows us to simplify the correlation structure of tomographic cosmic shear observations, as well as to build observables that depend only on a localized range of redshifts and thus independent from the low-redshift/small-scale modes. This procedure renders possible accurate, and from-first-principles, predictions of the convergence and aperture mass one-point distributions (PDF). We here explore other consequences of this transformation on the (reduced) numerical complexity of the estimation of the joint PDF between nulled bins and demonstrate how to use these results to make theoretical predictions.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available