Résumé / Abstract Seminaire_IAP
« The Baryon Oscillation Spectroscopic Surve »

David Schlegel
Lawrence Berkeley National Lab. (Berkeley, California, Etats-Unis d'Amérique)

The Baryon Oscillation Spectroscopic Survey (BOSS) on the SDSS Telescope will map 1.3 million galaxies at z<0.7 and measure hydrogen absorption in 160,000 QSOs at z>2.
This will provide the definitive measurement of the low-redshift baryon acoustic oscillation (BAO) scale, and it will pioneer a powerful new method of measuring BAO at high redshift.

BigBOSS is a proposed international France-China-U.S.
Stage IV ground-based dark energy experiment. The project will use a new optical-NIR spectrograph (R=2300-6100) on the 4-m telescopes at Kitt Peak and Cerro Tololo, covering a 3-degree diameter field with 5000 individually-actuated fibers. 50 million targets over 24,000 deg^2 will measure BAO and redshift-space distortions with unprecedented accuracy.
vendredi 18 septembre 2009 - 11:00
Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris
Page web du séminaire / Seminar's webpage