New Publication

New Cosmology group paper

Cosmological Fisher forecasts for next-generation spectroscopic surveys ” by William Doumerg and collaborators has been uploaded to arXiv.

In this paper we perform a Fisher matrix analysis for future spectroscopic surveys (MegaMapper, MUST…) on the BAO, RSD, the non-Gaussianity amplitude, and the total neutrino mass. These surveys will have a large number of fibres (~20,000), and study the high redshift universe (z>2). In addition, we model the observations of a spectroscopic survey with free observational parameters (redshift range, sky coverage, efficiency threshold…), and we derive the optimal ones for non-Gaussianity and neutrino mass measurements, and study the fibre increase effect.

Latest Group News

New results

Andreu Font Presents Latest DESI BAO Results at Harvard

May 5, 2025

Andreu Font presented new DESI results on Baryon Acoustic Oscillations at Harvard, raising questions about the ΛCDM model and the constancy of the cosmological constant.

New Member

New member in the Cosmology Group

April 2, 2025

Tyann Dumerchat joined the Observational Cosmology group as a postdoctoral researcher

Instrumentation

Vera C. Rubin Observatory Installs LSST Camera on Telescope

March 13, 2025

The Vera C. Rubin Observatory has reached a major milestone with the successful installation of the LSST Camera on its telescope.