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21 cm observation of LSS at z~1 Instrument sensitivity and foreground subtraction
R. Ansari, J. E. Campagne, P. Colom +6
Large Scale Structures (LSS) in the universe can be traced using the neutral atomic hydrogen HI through its 21cm emission. Such a 3D matter distribution map can be used to test the…
Simulations of BAO reconstruction with a quasar Lyman-alpha survey
J. -M. Le Goff, C. Magneville, E. Rollinde +13
The imprint of Baryonic Acoustic Oscillations (BAO) on the matter power spectrum can be constrained using the neutral hydrogen density in the intergalactic medium as a tracer of th…
A Principal Component Analysis of quasar UV spectra at z~3
I. Pâris, P. Petitjean, E. Rollinde +12
From a Principal Component Analysis (PCA) of 78 z~3 high quality quasar spectra in the SDSS-DR7, we derive the principal components characterizing the QSO continuum over the full w…
The Lyman-alpha forest in three dimensions: measurements of large scale flux correlations from BOSS 1st-year data
Anže Slosar, Andreu Font-Ribera, Matthew M. Pieri +34
Using a sample of approximately 14,000 z>2.1 quasars observed in the first year of the Baryon Oscillation Spectroscopic Survey (BOSS), we measure the three-dimensional correlation…