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Title: Scientific Synergy between LSST and Euclid

Journal Article · · The Astrophysical Journal. Supplement Series (Online)
ORCiD logo [1];  [2];  [3];  [4];  [5];  [6];  [1];  [7];  [8]; ORCiD logo [9]; ORCiD logo [10];  [11];  [9];  [1]; ORCiD logo [1];  [12];  [13]; ORCiD logo [10];  [14];  [1] more »;  [15]; ORCiD logo [16]; ORCiD logo [17];  [2];  [14];  [18];  [6]; ORCiD logo [16];  [19]; ORCiD logo [20]; ORCiD logo [21];  [22];  [12];  [23]; ORCiD logo [16];  [24]; ORCiD logo [25] « less
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  2. University of Portsmouth (United Kingdom)
  3. Universite Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris (France)
  4. Cornell Univ., Ithaca, NY (United States)
  5. Universite Savoie Mont Blanc, CNRS/IN2P3 (France)
  6. University of Bristol (United Kingdom)
  7. I.N.A.F.-Osservatorio Astronomico di Roma Via Frascati 33-I-00040 Monte Porzio Catone, Roma (Italy)
  8. Universite Cote d Azur, Observatoire de la Cote d Azur (France)
  9. University of Nottingham, University Park (United Kingdom)
  10. University of Washington, Seattle, WA (United States)
  11. Universite Paris Diderot (France); Observatoire de Paris, PSL Research University (France)
  12. Universitat Bonn (Germany)
  13. University of Toronto, Ontario (Canada)
  14. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  15. University College London (United Kingdom)
  16. Princeton University, Princeton, NJ (United States)
  17. Carnegie Mellon University, Pittsburgh, PA (United States)
  18. Durham University (United Kingdom)
  19. Universite Pierre & Marie Curie (France); IRFU, Service d Astrophysique, CEA Saclay (France)
  20. University of Pittsburgh, PA (United States)
  21. University of California, Santa Cruz, CA (United States)
  22. Universite Paris Diderot (France)
  23. University of Birmingham (United Kingdom)
  24. Institute for Astronomy, School of Physics and Astronomy, Royal Observatory Edinburgh (United Kingdom)
  25. Stony Brook Univ., NY (United States)

We report that 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. Also, 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.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1417339
Journal Information:
The Astrophysical Journal. Supplement Series (Online), Vol. 233, Issue 2; ISSN 1538-4365
Publisher:
American Astronomical Society/IOPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

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Calibrating Redshift Distributions Beyond Spectroscopic Limits with Cross-Correlations text January 2008
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PHAT: PHoto-z Accuracy Testing text January 2010
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Host Galaxy Spectra and Consequences for SN Typing From The SDSS SN Survey text January 2013
An Atlas of Galaxy Spectral Energy Distributions from the Ultraviolet to the Mid-Infrared text January 2013
CANDELS Visual Classifications: Scheme, Data Release, and First Results text January 2014
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Weighing the Giants IV: Cosmology and Neutrino Mass text January 2014
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An accurate and practical method for inference of weak gravitational lensing from galaxy images text January 2015
Prediction of transits of solar system objects in Kepler/K2 images: An extension of the Virtual Observatory service SkyBoT text January 2016
KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing text January 2016
A study of the sensitivity of shape measurements to the input parameters of weak lensing image simulations text January 2016
KiDS-450: Testing extensions to the standard cosmological model text January 2016
Measuring weak lensing correlations of Type Ia Supernovae text January 2016
Practical Weak Lensing Shear Measurement with Metacalibration text January 2017
KiDS-450: Tomographic Cross-Correlation of Galaxy Shear with {\it Planck} Lensing text January 2017
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Cited By (12)

Galaxy formation and evolution science in the era of the Large Synoptic Survey Telescope journal June 2019
Taxonomic classification of asteroids based on MOVIS near-infrared colors journal September 2018
Simulating MOS science on the ELT: Ly α forest tomography journal December 2019
Cosmological constraints from a joint analysis of cosmic microwave background and spectroscopic tracers of the large-scale structure journal August 2018
Horizon-AGN virtual observatory – 1. SED-fitting performance and forecasts for future imaging surveys journal April 2019
Cosmological constraints from galaxy–lensing cross-correlations using BOSS galaxies with SDSS and CMB lensing journal October 2019
High energy physics and cosmology at the unification frontier: Opportunities and challenges in the coming years journal July 2018
The DEIMOS 10K Spectroscopic Survey Catalog of the COSMOS Field journal May 2018
LSST: From Science Drivers to Reference Design and Anticipated Data Products journal March 2019
LSST: from Science Drivers to Reference Design and Anticipated Data Products text January 2008
The DEIMOS 10k spectroscopic survey catalog of the COSMOS field text January 2018
Cosmological constraints from galaxy-lensing cross correlations using BOSS galaxies with SDSS and CMB lensing text January 2018

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