Résumé / Abstract Seminaire_GReCO
SÉMINAIRE DU GRECO

"What can we learn from averaging cosmological observables in different environments?"

Ixandra Achitouv
Centre for Astrophysics and Supercomputing, Swinburne University of Technology (Melbourne, Australie)

In this talk, I will give an overview of 3 different aspects of my research: what can we learn from measuring the baryon acoustic oscillations (BAO) in different environments; why are under-dense regions interesting and how can we quickly test departures from GR in void profiles using Monte Carlo Random walks; and finally, I will discuss how we can challenge the LCDM picture by measuring the growth rate in different environments. In particular I will present the first constraint from the void-galaxy cross correlation function in the 6dF Galaxy Survey.


lundi 19 septembre 2016 - 11:00
Salle des séminaires Évry Schatzman,
Institut d'Astrophysique de Paris

Page web du séminaire / Seminar's webpage