Description
WEDNESDAY SESSION
This session will be devoted to the white-paper entry in 21cm. The main possibilities we have discussed are:
- Join HIRAX/TIANLAI
- Make are HIRAX clone
- Build an instrument for GBT:
- short backfire antenna pixel based camera based of Tzu-Ching's work. Perhaps a 7 element at 700-900MHz and 4 element at 400-600MHz.
- phased array working 350-1.2GHz, optimized at 400-600.
The nominal science goal is PZ calibration of LSST photo-z's beyond beyond reach of DESI. The cost has to be low O(10)million. The main difficulty is kparallel space overlap.
For all cases we need to answer:
- How will this effort enhance our current knowledge of dark energy?
- How does the idea complement other efforts?
- Cost estimate
- Timeline
- What are the key technical and logistical obstacles (if any)? (Examples: data sharing among collaborations, existence of an instrument, international engagements, etc)
In addition, how can we be sure that we'll have sufficient number of common modes? What is the back-up science case?