IFPU Focus Week: Controlling systematics in the Euclid spectroscopic sample

26 Sept 2022, 09:00 → 30 Sept 2022, 19:00 Europe/Rome

IFPU, Room 205

Pierluigi Monaco (Istituto Nazionale di Astrofisica (INAF))

Controlling systematics in the Euclid spectroscopic sample

The Euclid mission will characterize dark energy and dark matter by using Galaxy Clustering measured from a spectroscopic sample of galaxies out to z~2 (the Euclid Wide Survey). The cosmological measurements are dominated by systematics, which are being investigated by two Work Packages associated with the Galaxy Clustering Science Working Group of the Euclid Consortium. Specifically, the End-to-End Simulations and the Observational Systematics Work Packages (WPs). This meeting brings together the scientists working within these two work packages to coordinate our effort to characterize and control the expected systematics in the spectroscopic sample of the Euclid Wide Survey. Controlling and mitigating for systematics require the coordination of different expertises, from deep knowledge of the instrument, to understanding of galaxy clustering estimators and cosmological parameters estimation. A hands-on meeting is needed to push forward (or in some cases to kick off) our work on several pre-launch key-project papers that are coordinated by these WPs.

Link to the event in the IFPU web site

Monday 26 September

09:00 Welcome and registration

1 Update on Paper 2

Speaker: Pierluigi Monaco (Istituto Nazionale di Astrofisica (INAF))

Slides on Paper 2 update

2 The random catalog

Speaker: Benjamin Rudolph Granett (Istituto Nazionale di Astrofisica (INAF))

Slides on construction of the random catalog

11:00 Free time

3 Adding systematics to mocks or random, including interlopers

Leads: P. Monaco, B. Granett

17:00 GC-SWG telecon

Tuesday 27 September

4 SIR walkthrough

Stefano Dusini and Antonino Troja

Speaker: Stefano Dusini (INFN Padova)

5 SPE walkthrough

Speaker: Michele Ennio Maria Moresco (Istituto Nazionale di Astrofisica (INAF))

11:00 Free time

6 Discussion: image simulations for P&C

Lead by Michele Moresco and Kevin McCarthy, including an update on Paper 4 by Kevin

Wednesday 28 September

7 Correcting for small-displacement interlopers in BAO analyses

by WIll Percival

8 Including lensing in galaxy clustering

Speaker: Guilhem Lavaux (IAP / CNRS)

11:00 Coffee break

11:30 Talk by Oliver Hahn at the Trieste Observatory (downtown)

It can be followed in remote: http://meet.google.com/zfy-mtgs-tpc

12:30 Free time

9 Update on Paper 5

by Graeme Addison

10 Discussion: how to model redshift errors

Lead by Sylvain De La Torre and Graeme Addison

Thursday 29 September

11 Systematics from the Power Spectrum estimation

by Kevin Pardede and Jacopo Salvalaggio

12 Update on paper 11

by Sean Bruton

10:30 Coffee break

11:00 Talk by Ariel Sanchez for the IFPU LSS meeting

12:00 Free time

13 Discussion: V&V document for GC

Lead by Will Percival

17:00 Telecon of P&C Tiger Team

Friday 30 September

14 Unallocated time

10:30 Coffee break

11:00 IFPU Colloquia: Can galaxy surveys answer the question: what is Dark Energy?

by Will Percival

12:00 Free time