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Enabling Weak lensing Cosmology

Objective

Our understanding of cosmology and fundamental physics continues to be challenged by ever more precise experiments. The resulting “standard” model of cosmology describes the data well, but is unable to explain the origin of the main constituents of our Universe, namely dark matter and dark energy. More than an order of magnitude improvement in the quality and quantity of observational data is needed. This has motivated ESA to select Euclid as the second mission of its cosmic vision program, with a scheduled launch in 2020. It is designed to accurately measure the alignments of distant galaxies due to the differential deflection of light-rays by intervening structures, a phenomenon called gravitational lensing. Euclid will measure this signal by imaging 1.5 billion galaxies with a resolution similar to that of the Hubble Space Telescope.
Although Euclid is designed to minimize observational systematics the observations are still compromised by two factors. Various instrumental effects need to be corrected for, and the tremendous improvement in precision has to be matched with comparable advances in the modelling of astrophysical effects that affect the signal. The objective of this proposal is to make significant progress on both fronts. To do so, we will (i) quantify the morphology of galaxies using archival HST observations; (ii) carry out a unique narrow-band photometric redshift survey to obtain state-of-the-art constraints on the intrinsic alignments of galaxies that arise due to tidal interactions, and would otherwise contaminate the cosmological signal; (iii) integrate these results into the end-to-end simulation pipeline; (iv) perform a spectroscopic redshift survey to calibrate the photometric redshift technique. The Euclid Consortium has identified these as critical issues, which need to be addressed before launch, in order to maximise the science return of this exciting mission, and enable the dark energy science objectives of Europe.

Coordinator

UNIVERSITY COLLEGE LONDON
Net EU contribution
€ 234 090,00
Address
Gower Street
WC1E 6BT London
United Kingdom

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Region
London Inner London — West Camden and City of London
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,29

Participants (11)

UNIVERSITEIT LEIDEN
Netherlands
Net EU contribution
€ 28 750,00
Address
Rapenburg 70
2311 EZ Leiden

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Region
West-Nederland Zuid-Holland Agglomeratie Leiden en Bollenstreek
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Spain
Net EU contribution
€ 237 728,96
Address
Calle Serrano 117
28006 Madrid

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Region
Comunidad de Madrid Comunidad de Madrid Madrid
Activity type
Research Organisations
Non-EU contribution
€ 0,00
Third-party

Legal entity other than a subcontractor which is affiliated or legally linked to a participant. The entity carries out work under the conditions laid down in the Grant Agreement, supplies goods or provides services for the action, but did not sign the Grant Agreement. A third party abides by the rules applicable to its related participant under the Grant Agreement with regard to eligibility of costs and control of expenditure.

UNIVERSIDAD AUTONOMA DE MADRID
Spain
Net EU contribution
€ 30 013,54
Address
Calle Einstein 3 Ciudad Univ Cantoblanco Rectorado
28049 Madrid

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Region
Comunidad de Madrid Comunidad de Madrid Madrid
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
INSTITUTO DE FISICA DE ALTAS ENERGIAS
Spain
Net EU contribution
€ 163 167,50
Address
Campus De Bellaterra - Universidad Autonoma De Barcelona
08193 Cerdanyola Del Valles

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Region
Este Cataluña Barcelona
Activity type
Research Organisations
Non-EU contribution
€ 0,00
CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIOAMBIENTALES Y TECNOLOGICAS-CIEMAT
Spain
Net EU contribution
€ 163 167,50
Address
Avenida Complutense 40
28040 Madrid

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Region
Comunidad de Madrid Comunidad de Madrid Madrid
Activity type
Research Organisations
Non-EU contribution
€ 0,00
UNIVERSITY OF DURHAM
United Kingdom
Net EU contribution
€ 180 885,00
Address
Stockton Road The Palatine Centre
DH1 3LE Durham

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Region
North East (England) Tees Valley and Durham Durham CC
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
ISTITUTO NAZIONALE DI ASTROFISICA
Italy
Net EU contribution
€ 145 875,00
Address
Viale Del Parco Mellini 84
00136 Roma

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Region
Centro (IT) Lazio Roma
Activity type
Research Organisations
Non-EU contribution
€ 0,00
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France
Net EU contribution
€ 190 490,00
Address
Rue Michel Ange 3
75794 Paris

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Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
Non-EU contribution
€ 0,00
RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN
Germany
Net EU contribution
€ 134 706,25
Address
Regina Pacis Weg 3
53113 Bonn

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Region
Nordrhein-Westfalen Köln Bonn, Kreisfreie Stadt
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV
Germany
Net EU contribution
€ 49 061,25
Address
Hofgartenstrasse 8
80539 Munchen

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Region
Bayern Oberbayern München, Kreisfreie Stadt
Activity type
Research Organisations
Non-EU contribution
€ 0,00
FCIENCIAS.ID - ASSOCIACAO PARA A INVESTIGACAO E DESENVOLVIMENTO DE CIENCIAS
Portugal
Net EU contribution
€ 29 218,75
Address
Campo Grande, Edificio C1, Piso 3
1749 016 Lisbon

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Region
Continente Área Metropolitana de Lisboa Área Metropolitana de Lisboa
Activity type
Research Organisations
Non-EU contribution
€ 0,00