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Scientific Synergy between LSST and Euclid

Rhodes, Jason; Nichol, Robert C.; Aubourg, Éric; Bean, Rachel; Boutigny, Dominique; Bremer, Malcolm N.; Capak, Peter; Cardone, Vincenzo; Carry, Benoît; Conselice, Christopher J.; Connolly, Andrew J.; Cuillandre, Jean-Charles; Hatch, N.A.; Helou, George; Hemmati, Shoubaneh; Hildebrandt, Hendrik; Hložek, Renée; Jones, Lynne; Kahn, Steven; Kiessling, Alina; Kitching, Thomas; Lupton, Robert; Mandelbaum, Rachel; Markovic, Katarina; Marshall, Phil; Massey, Richard; Maughan, Ben J.; Melchior, Peter; Mellier, Yannick; Newman, Jeffrey A.; Robertson, Brant; Sauvage, Marc; Schrabback, Tim; Smith, Graham P.; Strauss, Michael A.; Taylor, Andy; Linden, Anja Von Der

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Authors

Jason Rhodes

Robert C. Nichol

Éric Aubourg

Rachel Bean

Dominique Boutigny

Malcolm N. Bremer

Peter Capak

Vincenzo Cardone

Benoît Carry

Christopher J. Conselice

Andrew J. Connolly

Jean-Charles Cuillandre

N.A. Hatch

George Helou

Shoubaneh Hemmati

Hendrik Hildebrandt

Renée Hložek

Lynne Jones

Steven Kahn

Alina Kiessling

Thomas Kitching

Robert Lupton

Rachel Mandelbaum

Katarina Markovic

Phil Marshall

Ben J. Maughan

Peter Melchior

Yannick Mellier

Jeffrey A. Newman

Brant Robertson

Marc Sauvage

Tim Schrabback

Graham P. Smith

Michael A. Strauss

Andy Taylor

Anja Von Der Linden



Abstract

Euclid and the Large Synoptic Survey Telescope (LSST) are poised to dramatically change the astronomy landscape early in the next decade. The combination of high-cadence, deep, wide-field optical photometry from LSST with high-resolution, wide-field optical photometry, and near-infrared photometry and spectroscopy from Euclid will be powerful for addressing a wide range of astrophysical questions. We explore Euclid/LSST synergy, ignoring the political issues associated with data access to focus on the scientific, technical, and financial benefits of coordination. We focus primarily on dark energy cosmology, but also discuss galaxy evolution, transient objects, solar system science, and galaxy cluster studies. We concentrate on synergies that require coordination in cadence or survey overlap, or would benefit from pixel-level co-processing that is beyond the scope of what is currently planned, rather than scientific programs that could be accomplished only at the catalog level without coordination in data processing or survey strategies. We provide two quantitative examples of scientific synergies: the decrease in photo-z errors (benefiting many science cases) when high-resolution Euclid data are used for LSST photo-z determination, and the resulting increase in weak-lensing signal-to-noise ratio from smaller photo-z errors. We briefly discuss other areas of coordination, including high-performance computing resources and calibration data. Finally, we address concerns about the loss of independence and potential cross-checks between the two missions and the potential consequences of not collaborating.

Citation

Rhodes, J., Nichol, R. C., Aubourg, É., Bean, R., Boutigny, D., Bremer, M. N., …Linden, A. V. D. (2017). Scientific Synergy between LSST and Euclid. Astrophysical Journal Supplement, 233(2), Article 21. https://doi.org/10.3847/1538-4365/aa96b0

Journal Article Type Article
Acceptance Date Oct 18, 2017
Online Publication Date Dec 7, 2017
Publication Date Dec 7, 2017
Deposit Date Jan 5, 2018
Publicly Available Date Jan 5, 2018
Journal Astrophysical Journal Supplement
Print ISSN 0067-0049
Electronic ISSN 1538-4365
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 233
Issue 2
Article Number 21
DOI https://doi.org/10.3847/1538-4365/aa96b0

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Copyright Statement
© 2017. The American Astronomical Society. All rights reserved.





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