CCAPP Seminar: "Cosmology from Spectroscopic Surveys: eBOSS and Beyond" Kyle Dawson (Utah)

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October 17, 2017
11:30AM - 12:30PM
Location
PRB 4138

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Add to Calendar 2017-10-17 11:30:00 2017-10-17 12:30:00 CCAPP Seminar: "Cosmology from Spectroscopic Surveys: eBOSS and Beyond" Kyle Dawson (Utah) The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is a six year program that extends the successful BOSS experiment with new classes of galaxy and quasar spectroscopic targets.  Using luminous red galaxies (LRG), emission line galaxies (ELG), and quasars covering redshifts never before explored with baryon acoustic oscillation measurements (BAO), we will obtain spectra for more than one million direct tracers of the cosmic density field from 0.6<z<2.2.  The project is more than halfway complete and has already produced its first cosmological measurements.  In this talk, I will provide an overview of the program and the results from the first two years of the survey.  I will provide a more thorough description of the emission line galaxy component of eBOSS that started one year ago and will conclude this summer.  That ELG program is a stepping stone toward the Dark Energy Spectroscopic Instrument (DESI) starting in 2019.  I will conclude with a discussion of the DESI project and the potential for spectroscopy as a tool to constrain cosmology in the years after DESI. PRB 4138 Center for Cosmology and AstroParticle Physics (CCAPP) ccapp@osu.edu America/New_York public
Description

The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is a six year program that extends the successful BOSS experiment with new classes of galaxy and quasar spectroscopic targets.  Using luminous red galaxies (LRG), emission line galaxies (ELG), and quasars covering redshifts never before explored with baryon acoustic oscillation measurements (BAO), we will obtain spectra for more than one million direct tracers of the cosmic density field from 0.6<z<2.2.  The project is more than halfway complete and has already produced its first cosmological measurements.  In this talk, I will provide an overview of the program and the results from the first two years of the survey.  I will provide a more thorough description of the emission line galaxy component of eBOSS that started one year ago and will conclude this summer.  That ELG program is a stepping stone toward the Dark Energy Spectroscopic Instrument (DESI) starting in 2019.  I will conclude with a discussion of the DESI project and the potential for spectroscopy as a tool to constrain cosmology in the years after DESI.

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