期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 389, 期 2, 页码 741-748出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2008.13494.x
关键词
galaxies : evolution; galaxies : formation; galaxies : statistics
We study the radial velocity dependence in the spatial orientations of 10 562 spiral galaxies that have radial velocity < 5000 km s(-1). The inclination angle and intrinsic flatness of galaxy are used to covert two-dimensional given parameters into three-dimensional spin vectors of the galaxy. We have performed Kolmogorov-Smirnov, Kuiper and Fourier tests in order to examine non-random effects in the expected isotropic distributions. The galaxies that have radial velocities 1500 to 2000 and 3000 to 3500 km s(-1) show preferred alignments in both the two- and three-dimensional analysis. The possible explanations of the results will be discussed.
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