Latest results from the DESI Lyman-alpha forest sample

ORAL  · Invited

Abstract

The Dark Energy Spectroscopic Instrument (DESI) is conducting an 8 year redshift survey of more than 60 million extra-galactic sources over 17,000 square degrees. One of its primary goals is to measure the cosmic expansion history across a wide range of redshifts in order to probe the nature of dark energy. At high redshifts (z > 2), DESI uses the Lyman-alpha forest and its cross-correlation with the quasar distribution to map the underlying large-scale structure and constrain cosmology. In this talk, I will present the latest results from the DESI Lyman-alpha forest sample. These include full-shape measurements of the Lyman-alpha forest and their cosmological interpretation.

*This work is supported by the U.S. Department of Energy, Office of Science, Office of High-Energy Physics, under Contract No. DE–AC02–05CH11231, and by the National Energy Research Scientific Computing Center. Additional support for DESI was provided by the U.S. National Science Foundation, Division of Astronomical Sciences under Contract No. AST-0950945; the Science and Technology Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising-Simons Foundation; the French Alternative Energies and Atomic Energy Commission; the National Council of Humanities, Science and Technology of Mexico; the Ministry of Science, Innovation and Universities of Spain, and by the DESI Member Institutions. The authors are honored to conduct research on I'oligam Du'ag, a mountain particularly significant to the Tohono O'odham Nation. For more information, visit desi.lbl.gov.

–

Publication: DESI DR2 results: Full-shape analysis of the Lyman-alpha forest in 3D (planned paper)

Presenters

  • Andrei Cuceu

    • Berkeley Lab

Authors

  • Andrei Cuceu

    • Berkeley Lab