Jun 5 – 6, 2017
Fermilab, Wilson Hall
US/Central timezone

Calibration of Photometric Redshifts from Clustering in the Dark Energy Survey

Jun 5, 2017, 2:15 PM
15m
One West (Fermilab, Wilson Hall)

One West

Fermilab, Wilson Hall

Oral Presentation Dark Matter and Astrophysics

Speaker

Ross Cawthon (University of Chicago)

Description

Redshift estimation is among the most significant issues in photometric cosmological surveys. Undetected biases in photometric redshift estimation can be found using clustering redshifts. In this presentation, we describe our clustering redshift estimates for weak lensing source galaxies, and redMaGiC galaxies in the Dark Energy Survey year 1 data. We also describe our methodology of applying corrections to photometric redshifts based on the clustering measurements as tested in simulations.

Primary author

Ross Cawthon (University of Chicago)

Co-authors

Chris Davis (Stanford University) Marco Gatti (IFAE Institute for HEP, Barcelona) Pauline Vielzeuf (IFAE Institute for HEP, Barcelona)

Presentation materials