Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-06-09
Publ.Astron.Soc.Jap. 57 (2005) 709-718
Astronomy and Astrophysics
Astrophysics
11 pages, 9 figures, accepted for publication in PASJ (Vol.57. No.5 in press)
Scientific paper
We present a first analysis of the clustering of SDSS galaxies using the distribution function of the sum of Fourier phases. This statistic was recently proposed by one of authors as a new method to probe phase correlations of cosmological density fields. Since the Fourier phases are statistically independent of Fourier amplitudes, the phase statistic plays a complementary role to the conventional two-point statistics of galaxy clustering. In particular, we focus on the distribution functions of phase sum over three closed wavevectors as a function of the configurations of triangle wavevectors. We find that the observed distribution functions of phase sum are in good agreement with the lowest-order approximation from perturbation theory. For direct comparison with observations, we construct mock catalogs from N-body simulations taking account of several observational effects such as the survey geometry, the redshift distortion, and the discreteness due to the limited number of data. Indeed the observed phase correlations for the galaxies in the range of absolute magnitude -22
Brinkmann Jon
Hikage Chiaki
Matsubara Takahiko
Park Changbom
Suto Yasushi
No associations
LandOfFree
Fourier Phase Analysis of SDSS Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Fourier Phase Analysis of SDSS Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fourier Phase Analysis of SDSS Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-171092