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Agnes Ferte
My main interest is cosmology, the study of the universe as a whole. I have been working on two phases of acceleration of the expansion of the universe: cosmic inflation shortly after the Big Bang and the current acceleration that started around 5 billions years ago.
I have started by studying the polarized anisotropies of the cosmic microwave background as a probe of inflation and more generally of the physics during the primordial universe.
My main current research is now focused on the recent universe, trying to understand what causes the current acceleration of the universe: a dark energy? Or is it a hint of different laws of gravity on very large scales?
I am mainly using the weak gravitational lensing as a cosmological observable and joined the Dark Energy Survey in 2014 to tackle these questions. I participated to the cosmological results from the first year of observation where we confirmed weak lensing is a very promising probe of the recent universe.
I am now coleading the Dark Energy Survey analysis team dedicated to test the different alternatives of the standard model of cosmology, specially to explain cosmic acceleration. I am also working on some challenges we will have to face in future weak lensing experiments (WFIRST, EUCLID, LSST).
I am also involved in public outreach and spread a bit of cosmology on twitter (@cosmologirl)
 PhD, Institut d’Astrophysique Spatiale, France
 Master, Université ParisSud, France
 Licence 3 Fundamental Physics, Université ParisSud, France
 Classe préparatoire, Reims, France
Cosmology: accelerating universe, cosmic microwave background  Statistics.
 2018: Postdoctoral research assistant, University College London, UK.
 2014 – 2017: Postdoctoral research assistant, Royal Observatory, Edinburgh, UK
1. DES Collaboration – Dark Energy Survey Year 1 Results: Constraints on Extended Cosmological Models from Galaxy Clustering and Weak Lensing, submitted to Phys. Rev. D, arXiv:1810.02499, 2018
2. A. Ferté, D. Kirk, A. Liddle, J. Zuntz – Testing gravity on cosmological scales with cosmic shear, CMB and RSD, soumis à Phys. Rev. D, arXiv:1712.01846, 2017
5. DES Collaboration – Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing, Phys. Rev. D 98, 043526, 2018
4. A. Ferté, J. Peloton, J. Grain, R. Stompor – Detecting the tensortoscalar ratio with the pure pseudospectrum reconstruction of Bmode, Phys. Rev. D 92, 083510, 2015
5. A. Ferté, J. Grain – Detecting chiral gravity with the pure pseudospectrum reconstruction of the cosmic microwave background polarized anisotropies, Phys. Rev. D 89, 103516, 2014
6. A. Ferté, J. Grain, R. Stompor, M. Tristram – E ciency of pseudo spectrum methods for estimation of the cosmic microwave background Bmode power spectrum, Phys. Rev. D 88, 023524, 2013
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