LIM25 - Annecy

Session

Contributed Talks 9: CIBER/HETDEX

Jun 4, 2025, 11:10 AM

Laboratoire d'Annecy de Physique Théorique (LAPTh)

Conveners

Contributed Talks 9: CIBER/HETDEX

• Maja Lujan Niemeyer (MPA)
• Grigory Heaton (California Institute of Technology)

Presentation materials

Heaton_Grigory.pdf

LujanNiemeyer_Maja.pdf

92. Systematic characterization for intensity-galaxy cross-correlations: A case study for the Cosmic Infrared Background Experiment

Grigory Heaton (California Institute of Technology)

6/4/25, 11:10 AM

Cross-correlation between galaxy redshifts and cosmic infrared background (CIB) anisotropies can offer further insight on the source of observed fluctuations as a function of redshift in the three-dimensional structure of the universe. However, such cross-correlations are sensitive to redshift tracer catalog non-uniformity, which can be significant in certain limits and without mitigation. In...

47. HETDEX: A Lyman-alpha Intensity Mapping Survey

Maja Lujan Niemeyer (MPA)

6/4/25, 11:25 AM

The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is a spectroscopic galaxy survey mapping locations of one million Lyman-alpha-emitting galaxies (LAEs) at z~2-4. It also produces a huge 3D Lyman-alpha map that is ideal for intensity mapping. In this talk we present forecasts for intensity mapping with HETDEX using SIMPLE, a lognormal simulation framework. Because the complex...