Systematic Studies in Galaxy Cluster Cosmology

Abstract: Constraining LambdaCDM cosmology with galaxy cluster abundance is one of the fundamental goals of the Dark Energy Survey (DES). Many thousands of clusters out to redshift 0.65 have been identified in DES data. Weak lensing and multi-wavelength studies with X-ray data and cosmic microwave background are performed to provide inputs to the cosmology constraint analysis, and studies about systematic effects are being conducted with simulation data. In this talk, I will discuss current progress on DES galaxy cluster cosmology analyses and especially the current systematic effect limits.

Video of Talk: https://www.youtube.com/watch?v=RdrFkrs84yY

Relevant Papers:
Dark Energy Survey Year 1 results: weak lensing mass calibration of redMaPPer galaxy clusters, by T. McClintock et al.
Dark Energy Surveyed Year 1 results: calibration of cluster mis-centring in the redMaPPer catalogues, by Y. Zhang et al.
Dark Energy Survey Year 1 results: validation of weak lensing cluster member contamination estimates from P(z) decomposition, by T. N. Varga et al.

cosmology and nongalactic astrophysicsgeneral relativity and quantum cosmology

Audience: advanced learners

( paper | slides | video )

---

CosmoConβ - Cosmology from Home

Series comments: Cosmology from Home is an online cosmology conference. One of its features are pre-recorded talks, publicly available at its YouTube channel.

---