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