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The Whole is Greater than the Sum of the Parts: Optimizing the Joint Science Return from LSST, Euclid and WFIRST

Jain, B. and Spergel, D. and Bean, R. and Connolly, A. and Dell'Antonio, I. and Frieman, J. and Gawiser, E. and Gehrels, N. and Gladney, L. and Heitmann, K. and Helou, G. and Hirata, C. and Ho, S. and Ivezić, Ž. and Jarvis, M. and Kahn, S. and Kalirai, J. and Kim, A. and Lupton, R. and Mandelbaum, R. and Marshall, P. and Newman, J. A. and Perlmutter, S. and Postman, M. and Rhodes, J. and Strauss, M. A. and Tyson, J. A. and Walkowicz, L. and Wood-Vasey, W. M. (2015) The Whole is Greater than the Sum of the Parts: Optimizing the Joint Science Return from LSST, Euclid and WFIRST. . (Submitted)

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The focus of this report is on the opportunities enabled by the combination of LSST, Euclid and WFIRST, the optical surveys that will be an essential part of the next decade's astronomy. The sum of these surveys has the potential to be significantly greater than the contributions of the individual parts. As is detailed in this report, the combination of these surveys should give us multi-wavelength high-resolution images of galaxies and broadband data covering much of the stellar energy spectrum. These stellar and galactic data have the potential of yielding new insights into topics ranging from the formation history of the Milky Way to the mass of the neutrino. However, enabling the astronomy community to fully exploit this multi-instrument data set is a challenging technical task: for much of the science, we will need to combine the photometry across multiple wavelengths with varying spectral and spatial resolution. We identify some of the key science enabled by the combined surveys and the key technical challenges in achieving the synergies.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Spergel, D.0000-0002-5151-0006
Helou, G.0000-0003-3367-3415
Hirata, C.0000-0002-2951-4932
Ivezić, Ž.0000-0001-5250-2633
Jarvis, M.0000-0001-7039-9078
Kalirai, J.0000-0001-9690-4159
Mandelbaum, R.0000-0003-2271-1527
Newman, J. A.0000-0001-8684-2222
Postman, M.0000-0002-9365-7989
Rhodes, J.0000-0002-4485-8549
Additional Information:Submitted on 30 Jan 2015 (v1), last revised 19 Feb 2015 (this version, v2). February 20, 2015. The resources required to achieve this additional science are outside of what is currently budgeted for LSST by NSF and DOE, and for WFIRST (or Euclid) by NASA. Funding for this science would most naturally emerge from coordination among all agencies involved, and would be closely orchestrated scientifically and programmatically to optimize science returns. A possible model would be to identify members of the science teams of each project who would work together on the joint analysis. The analysis team would ideally be coupled with an experienced science center acting as a focal point for the implementation, and simultaneously preparing the public release and documentation for broadest access by the community.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Record Number:CaltechAUTHORS:20150917-081449249
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60296
Deposited By: Ruth Sustaita
Deposited On:17 Sep 2015 19:45
Last Modified:09 Mar 2020 13:19

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