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SUMMARY:Constraints on dark energy and modified gravity from combined larg
 e-scale structure probes - Alessio Spurio Mancini
DTSTART:20190123T134500Z
DTEND:20190123T141500Z
UID:TALK117409@talks.cam.ac.uk
CONTACT:Catrina Diener
DESCRIPTION:The main goal of current and future surveys is to use differen
 t \ncosmological probes to investigate the true nature of cosmic \nacceler
 ation. In this talk I will present cosmological constraints \nobtained fro
 m a combined analysis of weak gravitational lensing\, \ngalaxy-galaxy lens
 ing and galaxy clustering from the Kilo-Degree Survey \n(KiDS) and the Gal
 axy And Mass Assembly (GAMA) survey\, including all the \ncross-correlatio
 ns between the different probes. With this analysis we \nset constraints o
 n parameters that describe the Horndeski class of dark \nenergy and modifi
 ed gravity models\, which includes the majority of \nextensions to ΛCDM t
 hat could explain cosmic acceleration. I will \nconclude my talk with a lo
 ok at how these constraints can be improved \nwith data from future Stage 
 IV cosmological surveys.
LOCATION:Sackler Lecture Theatre\, IoA
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