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Appendix C: Meeting Presentations and Open Session Summaries
Pages 23-38

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From page 23...
... role on the Euclid science team? How would U.S.
From page 24...
... detectors, a filter wheel for the NISP instrument, or reaction wheels. In return, NASA would receive one position on the Euclid Science Team (EST)
From page 25...
... He continued on to the role of the United States, which would consist of a hardware contribution in the form of NIR detectors, a filter wheel for NIR instruments, reaction wheels, or a contribution to the science ground segment. In exchange, the United States would receive one seat on the Euclid Science Team (EST)
From page 26...
... . Dark energy probes include cosmic shear weak lensing tomography, baryon acoustic oscillation (BAO)
From page 27...
... Contribution to Euclid Speaker: Jason Rhodes, Jet Propulsion Laboratory; member of the Euclid Consortium (EC) , non-voting member of the EC Board, member of the WFIRST science definition team Guiding Questions 1.
From page 28...
... By contrast, the current design reference mission for WFIRST includes all of the science objectives mandated by the NWNH decadal survey. Euclid devotes 6.25 years to BAO plus weak lensing as opposed to 2 years for WFIRST.
From page 29...
... Session Summary Steve Kahn delivered a discussion of the LSST, WFIRST, and Euclid missions and the potential relationships among the three. He began by stating that the Euclid data would benefit LSST in a number of ways.
From page 30...
... Discussion of the Current Study in the Context of New Worlds, New Horizons Speaker: Roger Blandford, Stanford University; Chair of the NRC's 2010 Astronomy and Astrophysics Decadal Survey (Astro2010) that produced New Worlds, New Horizons in Astronomy and Astrophysics Guiding Questions 1.
From page 31...
... participation in Euclid as a minor partner address the goals and priorities of NWNH? Session Summary Adam Burrows opened his discussion reviewing the history that brought about the NRC Panel on Implementing Recommendations from the New Worlds, New Horizons Decadal Survey (the Implementation Panel)
From page 32...
... Paul Hertz from NASA was asked about clarifying the cost of the hardware contributions under consideration and for information on what the cost for supporting a U.S. Euclid Science Team would be, and Hertz offered to prepare a response to be discussed during the discussion on the second day of the meeting.
From page 33...
... During the discussion, Turner clarified that there are many issues that threaten WFIRST and, although WFIRST is not a dark energy mission alone, joining Euclid would dramatically increase the threat to WFIRST because a mis-perception exists that WFIRST is primarily a dark energy mission and because to non-experts the Euclid hardware appears superior to that of WFIRST. Discussion of Euclid and WFIRST Gravitational Lensing Capabilities Speaker: Chris Hirata, California Institute of Technology; expert in dark energy and gravitational lensing Guiding Questions 1.
From page 34...
... parts, and, Hirata noted, the BAO survey Euclid will provide is similar to the "wide" BAO on WFIRST, so it might make sense to perform WFIRST BAO surveys all in the deep mode. In concluding his presentation, Hirata reminded the committee that Stage IV weak lensing is going to be hard from the ground or from space.
From page 35...
... When asked about the benefit of having early access to Euclid data, Bennett replied that it would be useful to have data earlier than the 14-month data policy, but that it also depends on how much microlensing they do. Processing the data quickly depends somewhat on hardware, and it is possible to do orbital microlensing parallax, but this might be easier to with a dedicated ground telescope.
From page 36...
... individual participation as co-investigators on instrument teams and on the ISO Science Team and several U.S. "scientific associates" also involved.
From page 37...
... deliverables, keeping that expertise alive in the United States and ensuring we have appropriate data access later. Helou also said that NASA would need to fund selected science team members to set up teams capable of exploiting data in a timely fashion and that NASA would need to establish a U.S.
From page 38...
... science center to support involvement in Euclid are not being discussed with ESA as part of the current discussions. In the discussion that followed, Hertz clarified that NASA and ESA have discussed NASA's providing either the detectors, the reaction wheels, or the filter wheels, but not multiple hardware contributions.


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