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School of Physics and Astronomy

Astronomy Unit Seminar -- Eva Mueller

When: Friday, October 2, 2020, 2:30 PM - 3:30 PM
Where: Online event,

Title: Final SDSS cosmological results

Abstract: I will present the cosmological implications from final measurements of clustering using galaxies, quasars, and Lyα forests from the completed Sloan Digital Sky Survey (SDSS) lineage of experiments in large-scale structure. These experiments, composed of data from SDSS, SDSS-II, BOSS, and eBOSS, offer independent measurements of baryon acoustic oscillation (BAO) measurements of angular-diameter distances and Hubble distances relative to the sound horizon, rd, from eight different samples and six measurements of the growth rate parameter, fσ8, from redshift-space distortions (RSD). This composite sample is the most constraining of its kind and allows us to perform a comprehensive assessment of the cosmological model after two decades of dedicated spectroscopic observation. I will discuss the constraints on dark energy, massive neutrinos, and the Hubble tension.