Quasar-Lyman α Forest Cross-Correlation from BOSS DR11 : Baryon Acoustic Oscillations
Andreu Font-Ribera
,
David Kirkby
,
N.G. Busca
(1)
,
Jordi Miralda-Escudé
,
Nicholas P. Ross
,
Anže Slosar
,
É. Aubourg
(2, 1)
,
Stephen Bailey
,
Vaishali Bhardwaj
,
J.E. Bautista
(1)
,
Florian Beutler
,
Dmitry Bizyaev
,
Michael Blomqvist
,
Howard Brewington
,
Jon Brinkmann
,
Joel R. Brownstein
,
Bill Carithers
,
Kyle S. Dawson
,
Timothée Delubac
,
Garrett Ebelke
,
Daniel J. Eisenstein
,
Jian Ge
,
Karen Kinemuchi
,
Khee-Gan Lee
,
Viktor Malanushenko
,
Elena Malanushenko
,
Moses Marchante
,
Daniel Margala
,
Demitri Muna
,
Adam D. Myers
,
Pasquier Noterdaeme
,
Daniel Oravetz
,
Nathalie Palanque-Delabrouille
,
Isabelle Pâris
,
Patrick Petitjean
,
Matthew M. Pieri
,
Graziano Rossi
,
Donald P. Schneider
,
Audrey Simmons
,
Matteo Viel
,
Christophe Yeche
,
Donald G. York
Andreu Font-Ribera
- Function : Author
David Kirkby
- Function : Author
Jordi Miralda-Escudé
- Function : Author
Nicholas P. Ross
- Function : Author
Anže Slosar
- Function : Author
É. Aubourg
- Function : Author
- PersonId : 14010
- IdHAL : eric-aubourg
- ORCID : 0000-0002-5592-023X
- IdRef : 078069823
Stephen Bailey
- Function : Author
Vaishali Bhardwaj
- Function : Author
J.E. Bautista
- Function : Author
- PersonId : 1373150
- ORCID : 0000-0002-9885-3989
- IdRef : 183909933
Florian Beutler
- Function : Author
Dmitry Bizyaev
- Function : Author
- PersonId : 765523
- ORCID : 0000-0002-3601-133X
Michael Blomqvist
- Function : Author
Howard Brewington
- Function : Author
Jon Brinkmann
- Function : Author
Joel R. Brownstein
- Function : Author
Bill Carithers
- Function : Author
Kyle S. Dawson
- Function : Author
Timothée Delubac
- Function : Author
Garrett Ebelke
- Function : Author
Daniel J. Eisenstein
- Function : Author
Jian Ge
- Function : Author
Karen Kinemuchi
- Function : Author
Khee-Gan Lee
- Function : Author
Viktor Malanushenko
- Function : Author
Elena Malanushenko
- Function : Author
Moses Marchante
- Function : Author
Daniel Margala
- Function : Author
Demitri Muna
- Function : Author
Adam D. Myers
- Function : Author
Pasquier Noterdaeme
- Function : Author
- PersonId : 739467
- IdHAL : pasquier-noterdaeme
- ORCID : 0000-0002-5777-1629
- IdRef : 136484999
Daniel Oravetz
- Function : Author
Nathalie Palanque-Delabrouille
- Function : Author
Isabelle Pâris
- Function : Author
- PersonId : 973398
Patrick Petitjean
- Function : Author
Matthew M. Pieri
- Function : Author
Graziano Rossi
- Function : Author
Donald P. Schneider
- Function : Author
Audrey Simmons
- Function : Author
Matteo Viel
- Function : Author
Christophe Yeche
- Function : Author
Donald G. York
- Function : Author
Abstract
We measure the large-scale cross-correlation of quasars with the Lyman alpha forest absorption, using over 164,000 quasars from Data Release 11 of the SDSS-III Baryon Oscillation Spectroscopic Survey. We extend the previous study of roughly 60,000 quasars from Data Release 9 to larger separations, allowing a measurement of the Baryonic Acoustic Oscillation (BAO) scale along the line of sight $c/(H(z=2.36) ~ r_s) = 9.0 \pm 0.3$ and across the line of sight $D_A(z=2.36)~ / ~ r_s = 10.8 \pm 0.4$, consistent with CMB and other BAO data. Using the best fit value of the sound horizon from Planck data ($r_s=147.49 Mpc$), we can translate these results to a measurement of the Hubble parameter of $H(z=2.36) = 226 \pm 8 km/s$ and of the angular diameter distance of $D_A(z=2.36) = 1590 \pm 60 Mpc$. The measured cross-correlation function and an update of the code to fit the BAO scale (baofit) are made publicly available.