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Joint Kick-off Meeting Summary for Euclid OU-LE3 SWG on Internal Data Implementation & Validation

This document summarizes the joint kick-off meeting for the Euclid OU-LE3 SWG, focusing on internal data implementation and validation. Discussion topics included the definition and algorithms for computing galaxy selection functions, luminosity functions, and stellar mass functions for deep and wide photometric and spectroscopic surveys. Key issues addressed include manpower requirements, algorithmic requirements from various SWGs, coordination of deliverables, and the inventory of existing codes. The meeting involved 18 members from various institutions including CEA, Italy's OA BOL, TRIEST, and UCL.

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Joint Kick-off Meeting Summary for Euclid OU-LE3 SWG on Internal Data Implementation & Validation

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  1. W.P. Internal data (S.Pires & E. Zucca) EUCLIDOU-LE3 Euclid OU-LE3-SWG joint kick-off Meeting

  2. WP Members • Internal data Implementation (8 members) • Sandrine Pires (CEA, France, lead) • MicolBolzonella(OA BOL, Italy) • Peder Nordberg (ROE, UK) • Fabio Fontanot(OA TRIEST, Italy) • Lucia Pozzetti(OA BOL, Italy) • Gabriella de Lucia (OA TRIEST, Italy) • Filipe Abdalla (UCL, UK) • Elena Zucca(OA BOL, Italy) • Internal data Validation (10 members) • Elena Zucca(OA BOL, Italy, lead) • MicolBolzonella(OA BOL, Italy) • Peder Nordberg (ROE, UK) • Fabio Fontanot(OA TRIEST, Italy) • Lucia Pozzetti(OA BOL, Italy) • Gabriella de Lucia (OA TRIEST, Italy) • Olga Cucciati(OA TRIEST, Italy) • SandroBardelli(OA BOL, Italy) • Daniela Vergani(IAS-BOL, Italy) • Sandrine Pires (CEA, France) • Internal data Implementation (8 members) • Sandrine Pires (CEA, France, lead) • MicolBolzonella (OA BOL, Italy) • Peder Nordberg (ROE, UK) • Fabio Fontanot (OA TRIEST, Italy) • Lucia Pozzetti (OA BOL, Italy) • Gabriella de Lucia (OA TRIEST, Italy) • Filipe Abdalla (UCL, UK) • Elena Zucca (OA BOL, Italy) • Internal data Validation (10 members) • Elena Zucca (OA BOL, Italy, lead) • MicolBolzonella (OA BOL, Italy) • Peder Nordberg (ROE, UK) • Fabio Fontanot (OA TRIEST, Italy) • Lucia Pozzetti (OA BOL, Italy) • Gabriella de Lucia (OA TRIEST, Italy) • Olga Cucciati (OA TRIEST, Italy) • SandroBardelli (OA BOL, Italy) • Daniela Vergani (IAS-BOL, Italy) • Sandrine Pires (CEA, France) Euclid OU-LE3-SWG joint kick-off Meeting

  3. WP Objectives • Algorithms for the computation of selection functions in the photometric galaxy surveys • Algorithms for the computation of selection functions in the spectroscopic galaxy surveys • Algorithms for the computation of the luminosity function in different bands and the stellar mass function Euclid OU-LE3-SWG joint kick-off Meeting

  4. WP Organization INTERNAL DATA - IMPLEMENTATION (PP) (PP) (PP) (NP) (PP) (PP) (NP) (PP) Euclid OU-LE3-SWG joint kick-off Meeting

  5. WP Organization INTERNAL DATA - VALIDATION (NP) (PP) (NP) (PP) (PP) (NP) (PP) (PP) (PP) (NP) Euclid OU-LE3-SWG joint kick-off Meeting

  6. Precise description of the Tasks • Definition, implementation and validation of the algorithms to computeLuminosity and Stellar Mass Functions for : • Deep and wide Euclid photometricgalaxysurvey • Deep and wide Euclid spectroscopicgalaxysurvey • Definition, implementation and validation of the algorithms to computeselectionfunctions for : • Deep and wide Euclid photometricgalaxysurvey • Deep and wide Euclid spectroscopicgalaxysurvey • Questions: • Are wealso in charge of angularselectionfunctions ? • Are we in charge of selectionfunctions for external (DES, PanStar) photometricgalaxysurvey ? It is not done by OU-EXT or WP external data? • Are we in charge of selectionfunctions for others catalogues such as stars, clusters… ? Or isitdone by the cluster of galaxies WP… Euclid OU-LE3-SWG joint kick-off Meeting

  7. Problem of Man Power • Do we have enough man power in the WP? • More people in the validation part than in the implementation part. • Small number of persons involved in the WP • Among those, postdocs cannot make long term commitments. • How many FTE are needed ? (WPBD = 4.2 FTE ?) • Do we have enough expert to complete all the tasks __ Euclid OU-LE3-SWG joint kick-off Meeting

  8. WP Development Organization Euclid OU-LE3-SWG joint kick-off Meeting

  9. Problem of WP outputs = definition and coordination = • Requirements on the algorithms from SWG • From Galaxy clustering SWG, Weak Lensing SWG, Galaxy evolution SWG • Requirements on the algorithms from OULE3 WPs ? • From Galaxy Clustering WP, Clusters of galaxies WP, Weak Lensing WP, Time domain WP Euclid OU-LE3-SWG joint kick-off Meeting

  10. WP inputs = definition and coordination = • Whois in charge of computingluminosities and stellar masses, and otherquantitiesweneed (e.g. galaxy types, k-corrections…) ? • Photometricsurvey: OU-PHZ • Spectroscopicsurvey: OU-SPE • Whois in charge of generating the mock catalogues withthesederivedquantities to develop and test the algorithms ? • OU-SIM? OU-PHZ? OU-SPE? • Need of coordination • Need of coordination Euclid OU-LE3-SWG joint kick-off Meeting

  11. Codes available • Inventory of existing codes: • For LFs and SMFs : • Public: M. Bolzonella • Not (yet) public: ALF (O. Ilbert, E. Zucca, L. Tresse) • Not public: L. Pozzetti • Angular Selection Functions : • Public: Mangle (M. Swanson) • Test the validity of current implementations • Agree with WP constraints or requirements • Will be sufficiently accurate for a survey like Euclid Euclid OU-LE3-SWG joint kick-off Meeting

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