BigBOSS: The Ground-Based Stage IV BAO Experiment

Schlegel, David ; Bebek, Chris ; Heetderks, Henry ; Ho, Shirley ; Lampton, Michael ; Levi, Michael ; Mostek, Nick ; Padmanabhan, Nikhil ; Perlmutter, Saul ; Roe, Natalie ; Sholl, Michael ; Smoot, George ; White, Martin ; Dey, Arjun ; Abraham, Tony ; Jannuzi, Buell ; Joyc

关键词: 47;    72;    79;    ACOUSTICS;    BARYONS;    DISTRIBUTION;    GALAXIES;    HYDROGEN;    OSCILLATIONS;    PERFORMANCE Dark energy;    baryon acoustic oscillations;    telescope;   

DOI  :  10.2172/960432
RP-ID  :  LBNL-1919E
PID  :  OSTI ID: 960432
Others  :  TRN: US200923%%497

美国|英语

来源: SciTech Connect

【 摘 要 】

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.