Measuring Dark Energy with Massive Redshift Surveys

Authors
Prof.
David Schlegel
Lawrence Berkeley National Laboratory
Date and time
14 Apr 2011 - 00:00 Europe/London
Address

Aula

Talk language
English
Slides language
English
Serie number
0
Description

The Baryon Oscillation Spectroscopic Survey (BOSS) is a Stage III dark energy experiment on the Sloan Telescope. For the five years from 2009-2014, we are mapping 1.5 million galaxies at z<0.7. A simultaneous survey of 160,000 QSOs is mapping the hydrogen gas in absorption at redshifts 2 < z < 3. BOSS will provide the definitive measurement of the low redshift (z<0.7) BAO distance scale, and it will pioneer a powerful new method of measuring BAO at high redshift. BigBOSS is a proposed Stage IV dark energy experiment that will extend this map to 20 million galaxies over 14,000 deg2 to z=1.7. I will describe this survey and its technical status.

Talk Video
https://youtu.be/BH_08YQqnCE
Early universe
Dark energy

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