Spectral Reductions, Redshifts, and Catalogs for Cosmology
Abstract
In the last twenty years, the Sloan Digital Sky Survey has built the largest three-dimensional map of the universe to date by measuring more than three million spectroscopic redshifts. From these catalogs, the extended Baryon Oscillation Spectroscopic Survey (eBOSS) produced the best constraints on the expansion history between redshifts of 0.6 and 3.5. In this talk, I will overview the spectroscopic data reduction pipeline of eBOSS and summarize the main challenges to achieve quality redshift measurements. I will then discuss how we produce enhanced catalogs for clustering studies that account for systematic effects associated with both photometric and spectroscopic observations.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23541302B