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Euclid Status, problems, opportunities
SAIt - 57° Congresso - L'Astronomia Italiana verso Horizon 2020. Bologna 7 Maggio 2013
Andrea Cimatti
University of Bologna
Department of Physics & Astronomy
?
?
+ + + +
DM + baryon + = 1
Λ
ESA Cosmic Vision 2015-2025
M-class Mission
Cosmological survey mission
2008-2011: Assessment + Definition Phases
2012 : final adoption in June
2013 : NASA joins Euclid
2020 : launch
Galactic Plane
Survey (TBD)
Deep 2
20 deg2
2 mag deeper
Wide Extragalactic
15,000 deg2
Mission elements • L2 Orbit (Soyuz ST-2.1 B launcher)
• Launch in 2020. ~ 6-7 year mission
• Telescope: 1.2 m primary diameter (“step & stare” survey mode)
Instruments
– VIS : visible imaging: CCD mosaic, 0.5 deg2, 0.1’’ pixels, 0.18’’ PSF, R+I+Z filter (0.55-0.92 μm), ABlim=24.5
– NISP: 0.5 deg2, 0.3’’ pixels, HgCdTe detectors
Imaging: Y, J, H bands to AB=24
Slitless spectra: 1.1–2 μm, R~300, F>3x10-16 ergs cm-2 s-1, mcont(H)
Roche et al. 2012
Bulk of redshifts
expected from
star-forming galaxies
at 0.7
Euclid
Cosmological
Probes
Modified
Gravity
Clusters
Power
spectrum
Weak Lensing
Large Scale Struct.
Systematics under control
Synergy with Planck: different cosmic epochs and high accuracy results
Several degeneracies between parameters are broken or weakened
Expected Accuracy
(WL+LSS)
(primary+CL+ISW)
over current accuracy
Euclid legacy and synergies
LSST
et al. ALMA
eROSITA
SKA
ELTs
Planck
JWST
GAIA
and much more … !!!!!!
Science Ground Segment
10 Pbyte data processing in 6 years
In ~6 years : 3 Data Releases + 4 intermediate LQ data releases
National
Agencies
Austria, Denmark, Finland, France,
Germany, Italy, Netherlands, Norway,
Portugal, Romania, Spain, Switzerland,
UK, +NASA
Industries
Overall mission design & execution
Spacecraft and contribution to instrument integrations
Launch of the spacecraft
Spacecraft operations through the MOC at ESOC Darmstadt
Overall Euclid Science Ground Segment (SGS)
VIS and NISP instruments
EC part of the SGS
SGS data processing
SGS data housekeeping
x10 x10
x8
x2
x2
x3
The Euclid Consortium
“Euclid-Italy” Team
• ~130 members
• Main financial support from ASI, partly from MIUR (PRIN)
• Universities : Bologna, Milano, Napoli, Padova, Roma1,
Roma2, Roma3, SISSA (Trieste), SNS (Pisa), Trieste
• INAF : OABO, OABrera, OACT, OAA, OANA, OAPD, OARM,
OATO, OATS, IASFBO, IASFMI, IAPS
Euclid Consortium • 13 countries + NASA, ~ 1000 people
• Lead: Chair (Y. Mellier - IAP France) + EC Board
• France, Italy & UK are the major contributors
• 2 Italians in the Board (A. Cimatti & R. Scaramella)
and Italian Participation
http://www.istruzione.it/web/hub/home
Problems ? Management of a large and crowded consortium … (but rapidly improving)
Opportunities
Start here: Fundamental Research Large project & synergies
Funding agencies
Career opportunities
ICT
Ind
ustrie
s Euclid mission
New results → New ideas
“The” high precision Dark Energy & Cosmology mission
Essential and unbeatable synergy of imaging + spectroscopy
Euclid will impact the whole astrophysics and cosmology for decades to come
EUCLID PLANCK