David Kirkby, Daniel Margala, Anže Slosar, Stephen Bailey, Nicolás G. Busca, Timothée Delubac, James Rich, Michael Blomqvist, Joel R. Brownstein, Bill Carithers, Rupert A. C. Croft, Kyle S. Dawson, Andreu Font-Ribera, Jordi Miralda-Escudé, Adam D. Myers, Robert C. Nichol, Nathalie Palanque-Delabrouille, Isabelle Pâris, Patrick Petitjean, Graziano Rossi, David J. Schlegel, Donald P. Schneider, Matteo Viel, David H. Weinberg, Christophe Yèche
We describe fitting methods developed to analyze fluctuations in the Lyman-{\alpha} forest and measure the parameters of baryon acoustic oscillations (BAO). We apply our methods to BOSS Data Release 9. Our method is based on models of the three-dimensional correlation function in physical coordinate space, and includes the effects of redshift-space distortions, anisotropic non-linear broadening, and broadband distortions. We allow for independent scale factors along and perpendicular to the line of sight to minimize the dependence on our assumed fiducial cosmology and to obtain separate measurements of the BAO angular and relative velocity scales. Our fitting software and the input files needed to reproduce our main BOSS Data Release 9 results are publicly available.
View original:
http://arxiv.org/abs/1301.3456
No comments:
Post a Comment