Our people

Olá! I am a project researcher at Kavli IPMU. Most of my current research happens within two different galaxy surveys: the Dark Energy Survey (DES) and the Dark Energy Spectroscopic Instrument (DESI).

DES is a photometric galaxy survey that obtained shapes and positions for hundreds of millions of objects. Shapes of galaxies are weakly but consistently distorted by the large scale structure of the Universe as light travels through the distribution of matter along the line of sight. This weak gravitational lensing effect combined with measurements of galaxy clustering allows us to probe the large scale structure of the Universe.

I currently co-lead the analysis of models beyond ΛCDM in the DES collaboration. We are analyzing the final weak lensing and galaxy clustering datasets (DES Y6 3x2pt) to obtain constraints on deviations from general relativity, on the dynamics of dark energy and on a number of other cosmological models. I was also largely involved in showing the robustness of DES results to different modeling systematics and covariance matrix assumptions.

DESI is a spectroscopic galaxy survey measuring the optical spectra of tens of millions of galaxies and quasars. Galaxy spectra provide accurate redshift measurements that can be used to map the 3D distribution of those objects. The 3D galaxy & quasar map produced by DESI allowed us to trace the expansion history of the Universe by measuring the BAO physical scale at different redshifts as it expands along with the Universe, providing insights on the dynamics of Dark Energy and the sum of neutrino masses.

Within DESI, I work on the BAO and full-shape analyses, particularly focusing on the production and validation of our covariance matrices. Having released BAO studies based on our second data release (DR2), we are currently analysing the full shape of DR2 clustering measurements beyond the BAO feature. I also serve in DESI's Education and Public Outreach committee.