The 4th joint meeting of eBOSS-DESI France

Session

LAM Day

4 oct. 2018, 14:00

Marseille

Description

In Mistral meeting room on 2nd floor

2. Observations in Cosmology

Pierros Ntelis (CPPM)

04/10/2018 14:00

In the era of upcoming redshift surveys, the sky will be more revealing than ever! In this talk, I will summarise standard and non standard observational methods and scenarios.

1. DT-Voids and BAO

Mme Charling Tao (CPPM)

04/10/2018 14:20

Status of work

10. Study of the void related systematics in the Alcock-Paczynski test

Marie Aubert (CPPM)

04/10/2018 14:40

The Alcock-Paczynski test is a very simple yet powerful tool to constraint cosmology when applied to voids. In this talk, I will present preliminary work accomplished in order to master void related systematics in the Alcock-Paczynski test.

11. Measuring the growth rate of structure with cosmic voids in GAMA

Dr Adam Hawken (CPPM)

04/10/2018 15:30

We measure the cross correlation of voids and galaxies in the Galaxy And Mass Assembly (GAMA) survey. This cross correlation exhibits an anisotropy indicative of redshift space distortions (RSD) caused by galaxies falling from the centres of voids onto the surrounding mass. We introduce a model for the multipoles of the void-galaxy cross correlation function that allows for void positions to...

6. DESxeBOSS gravity test discussion

Eric Jullo (LAM)

04/10/2018 15:50

In this session, I will briefly mention my plans for this project, and try to set up a schedule for the analysis.

5. Quasar identification with SQUEzE

Ignasi Pérez-Ràfols (LAM, Marseille)

04/10/2018 16:10

We present the current performance of the machine-learning code, SQUEzE, to identify quasars and estimate their redshift. We compare its performance with that of QuasarNet and conclude that, while it may not be as accurate as QuasarNet, it is lighter and more flexible