UCSD-2019: Cross-Cut: Sky Modeling

Charge

Determine the set of sky models (and all their requirements) that will be used as inputs to pre-CD1 simulations, when those sky models are required.
What are the necessary analysis tools to answer these questions?

Part I: Extragalactic Models

Break

Part II: Galactic Models

Summary of models used so far in r forecast work: Ben (5 mins)
MHD-based Models: Raphael Flauger (5-10 mins)
Filaments and MHD Sims: Kevin Huffenberger (5-10 mins) File:Huffenberger filament modeling.pdf
R&D on Frequency Dependence and New Spatial Templates: Brandon Hensley (5-10 mins) File:Hensley sky modeling.pdf
Discussion

PySM3 Development

PySM2 models already implemented with enhanced performance (memory, speedup)
Models at NSIDE 4096, including Galactic and extragalactic components (lensed CMB consistent with CIB)

WebSky Extragalactic Simulations

4000 CPU/hrs per sky realization, much more efficient than corresponding hydro sims, can make more if needed
tSZ, kSZ, weak lensing, multi-frequency CIB all computed self-consistently
Good consistency with data

Radio Sources in Extragalactic Models

Extragalactic Discussion

Action item: incorporate existing extragalactic maps into existing map-based sims
What about star formation, submm galaxies, proto-clusters?
Need to vary CIB model, but how?
- Leave it squishy, but constrained by observations
- Star-formation at z = 2-3
- Stick with fiducial SZ model? Seems sufficient for current needs
Action item: Cluster science goal using suite of WebSky sims for frequency optimization (and effect N_eff)