BICEP/BICEP2/Keck-Array Conclusions


Aggressive "get there first" program
Can we show that gravity wave B-modes exist?
If they do expensive experiments become justifiable...

"Foreground avoidance" strategy
Observe the cleanest 2% of the sky and target l=70 bump
Use multi frequency to push below r=0.03

Caltech/Chicago + others collaboration
Chicago responsible for cryostat, mount, analysis...