N-Body Simulations and Model Testing
Abstract
Quantifying the systematic error budget in redshift space distortion measurements from galaxy surveys is an essential step towards the determination of unbiased estimates of the cosmic growth rate. We developed a set of mock data challenges (including a blind series) to simulate clustering studies with eBOSS Luminous Red Galaxies, Emission Line Galaxies, and Quasars. The data challenge catalogs were based on high-fidelity mocks constructed from state-of-the-art N-body simulations such as the Outer Rim. In this talk, I will present results from those mock challenges and I will quantify the systematic error budget for the final growth estimates in eBOSS. I will also briefly touch upon the novel series of EZmocks, critical to quantifying the precision of the final eBOSS clustering results. Results from our study have broader application, as similar mock-making techniques and systematic corrections will be applied to DESI galaxy and quasar clustering studies.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23541304R