BigBOSS: The Ground-Based Stage IV Dark Energy Experiment
David J. Schlegel (1), Chris Bebek (1), Henry Heetderks (1), Shirley, Ho (1), Michael Lampton (1), Michael Levi (1), Nick Mostek (1), Nikhil, Padmanabhan (1), Saul Perlmutter (1), Natalie Roe (1), Michael Sholl (1),, George Smoot (1), Martin White (1), Arjun Dey (2)

TL;DR
BigBOSS is a ground-based dark energy experiment using a new multi-object spectrograph to measure BAO and galaxy redshifts, aiming to understand dark energy with high precision and lower cost.
Contribution
It introduces a new 4000-fiber spectrograph for all-sky galaxy surveys, enhancing ground-based capabilities for dark energy research.
Findings
Expected DETF FoM comparable to JDEM missions
Provides unprecedented multi-object spectroscopic data
Enables U.S. community access to advanced instrumentation
Abstract
The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift survey. The project is designed to unlock the mystery of dark energy using existing ground-based facilities operated by NOAO. A new 4000-fiber R=5000 spectrograph covering a 3-degree diameter field will measure BAO and redshift space distortions in the distribution of galaxies and hydrogen gas spanning redshifts from 0.2<z<3.5. The Dark Energy Task Force figure of merit (DETF FoM) for this experiment is expected to be equal to that of a JDEM mission for BAO with the lower risk and cost typical of a ground-based experiment. This project will enable an unprecedented multi-object spectroscopic capability for the U.S. community through an existing NOAO facility. The U.S. community would have access…
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Astrophysics and Cosmic Phenomena · Galaxies: Formation, Evolution, Phenomena
