Speaker
Dr
Andreu Font-Ribera
(University of Zurich)
Description
The Baryon Oscillation Spectroscopic Survey (BOSS) uses the SDSS telescope to obtain spectra of 1.5 million galaxies to get a very accurate measurements of the BAO scale at redshift z ~0.5. Roughly a 20% of the fibers of the spectrograph, however, are pointing to high redshift quasars with the idea of detecting the BAO also in the clustering of gas responsible for the Lyα absorption present in the quasars, known as the Lyα forest. In this talk I will present the first results of the survey, highlighting the first large scale measurement of the correlation function (Slosar++ 2011), the first detection of its large scale correlation with Damped Lyα systems (Font-Ribera++ 2012) and with quasars (Font-Ribera++ 2013), and the first detection of the BAO in the Lyα forest (Busca++2013, Slosar++2013).
