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Enhancing LSST Science with Euclid Synergy

Capak, P. and Cuillandre, J-C. and Bernardeau, F. and Castander, F. and Bowler, R. and Chang, C. and Grillmair, C. and Gris, P. and Eifler, T. and Hirata, C. and Hook, I. and Jain, B. and Kuijken, K. and Lochner, M. and Oesch, P. and Paltani, S. and Rhodes, J. and Robertson, B. and Rubin, D. and Scaramella, R. and Scarlata, C. and Scolnic, D. and Silverman, J. and Wachter, S. and Wang, Y. (2019) Enhancing LSST Science with Euclid Synergy. . (Unpublished)

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This white paper is the result of the Tri-Agency Working Group (TAG) appointed to develop synergies between missions and is intended to clarify what LSST observations are needed in order to maximally enhance the combined science output of LSST and Euclid. To facilitate LSST planning we provide a range of possible LSST surveys with clear metrics based on the improvement in the Dark Energy figure of merit (FOM). To provide a quantifiable metric we present five survey options using only between 0.3 and 3.8% of the LSST 10 year survey. We also provide information so that the LSST DDF cadence can possibly be matched to those of \emph{Euclid} in common deep fields, SXDS, COSMOS, CDFS, and a proposed new LSST deep field (near the Akari Deep Field South). Co-coordination of observations from the Large Synoptic Survey Telescope (LSST) and Euclid will lead to a significant number of synergies. The combination of optical multi-band imaging from LSST with high resolution optical and near-infrared photometry and spectroscopy from \emph{Euclid} will not only improve constraints on Dark Energy, but provide a wealth of science on the Milky Way, local group, local large scale structure, and even on first galaxies during the epoch of reionization. A detailed paper has been published on the Dark Energy science case (Rhodes et al.) by a joint LSST/Euclid working group as well as a white paper describing LSST/Euclid/WFIRST synergies (Jain et al.), and we will briefly describe other science cases here. A companion white paper argues the general science case for an extension of the LSST footprint to the north at airmass < 1.8, and we support the white papers for southern extensions of the LSST survey.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Capak, P.0000-0003-3578-6843
Grillmair, C.0000-0003-4072-169X
Eifler, T.0000-0002-1894-3301
Hirata, C.0000-0002-2951-4932
Hook, I.0000-0002-2960-978X
Lochner, M.0000-0003-2221-8281
Oesch, P.0000-0001-5851-6649
Paltani, S.0000-0002-8108-9179
Rhodes, J.0000-0002-4485-8549
Scarlata, C.0000-0002-9136-8876
Scolnic, D.0000-0002-4934-5849
Silverman, J.0000-0002-0000-6977
Group:Infrared Processing and Analysis Center (IPAC)
Record Number:CaltechAUTHORS:20190813-093516063
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97857
Deposited By: Tony Diaz
Deposited On:13 Aug 2019 18:44
Last Modified:09 Mar 2020 13:19

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