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Roger de Belsunce

Roger de Belsunce
Room K14
Kavli Institute for Cosmology, Cambridge
Institute of Astronomy
University of Cambridge
Madingley Road Cambridge CB3 0HA
United Kingdom


2019 - present: PhD student in cosmology (University of Cambridge, UK)

2017-2018: Master's thesis in theoretical cosmology (Stanford University, USA)

2016-2018: MSc in Physics (ETH Zurich, CH)

2016: Bachelor's thesis in particle physics (CERN, CH)

2012-2016: BSc in Physics (ETH Zurich, CH)

Research Interests

I am interested in constraining cosmological parameters by using large-scale structure data from galaxy surveys such as BOSS and DESI (of which I am an active member). Therefore, I use information obtained from galaxy clustering, the Lyman-alpha forest and quasars. In this context, I analyse the baryon acoustic oscillations, compute likelihoods to constrain cosmological parameters and perform tomographic redshift bin analyses of the data. 

In addition to large-scale structure data analysis, I am interested in developing and testing the novel likelihood-free approach on CMB data from the Planck survey. 



Key Publications

  • R. de Belsunce and L. Senatore, Tree-Level Bispectrum in the Effective Field Theory of Large-Scale Structure extended to Massive Neutrinos, JCAP 1902 (2019) 038 arXiv:1804.06849

KICC Annual Report 2019

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The Nobel Prize in Physics 2020

Oct 06, 2020

The Nobel Prize in Physics 2020 has been awarded to Roger Penrose, Reinhard Genzel, and Andrea Ghez, for their discoveries about one of the most exotic phenomena in the universe: the black hole.

First joint measurement of exoplanet’s mass and brightness challenges classical model of planet formation

Oct 02, 2020

A team of astronomers led by led by KICC researcher Mathias Nowak have used the ESO instrument GRAVITY to take the first image of an exoplanet that had previously only been detected indirectly via the spectrum of its star.

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