Scale-Scale Correlation as Discriminant Among the Biased Galaxy Formation Models
FENG Long-Long, XIANG Shou-Ping
Centre for Astrophysics, University of Science and Technology
of China, Hefei 230026
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Scale-Scale Correlation as Discriminant Among the Biased Galaxy Formation Models
FENG Long-Long; XIANG Shou-Ping
Centre for Astrophysics, University of Science and Technology
of China, Hefei 230026
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Abstract： Using the mock galaxy catalogues created from the N-body
simulations, various biasing prescriptions for modeling the
relative distribution between the galaxies and the underlying dark matter are statistically tested by using scale-scale correlation. We found that the scale-scale correlation is capable of breaking the model degeneracy indicated by the low order clustering statistics, and could be taken as an effective discriminant among a variety of biasing models. Particularly, comparing with the APM bright galaxy catalogue, we infer that the two parameter Lagrangian biasing model gives the best fit to the observed clustering features.
2001, Vol. 18 
