The SDSS-DR12 large-scale cross-correlation of damped Lyman alpha systems with the Lyman alpha forest

  title={The SDSS-DR12 large-scale cross-correlation of damped Lyman alpha systems with the Lyman alpha forest},
  author={Ignasi P'erez-Rafols and Andreu Font-Ribera and Jordi Miralda-Escud'e and Michael Blomqvist and Simeon Bird and Nicolas Busca and H{\'e}lion du Mas des Bourboux and Llu{\'i}s Mas-Ribas and P. Noterdaeme and Patrick Petitjean and James Rich and Donald P. Schneider},
  journal={Monthly Notices of the Royal Astronomical Society},
We present a measurement of the damped Ly α absorber (DLA) mean bias from the cross-correlation of DLAs and the Ly α forest, updating earlier results of Font-Ribera et al. (2012) with the final Baryon Oscillations Spectroscopic Survey data release and an improved method to address continuum fitting corrections. Our cross-correlation is well fitted by linear theory with the standard ΛCDM model, with a DLA bias of b_DLA = 1.99 ± 0.11; a more conservative analysis, which removes DLA in the Ly… 
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