Galaxy Zoo: the large-scale spin statistics of spiral galaxies in the Sloan Digital Sky Survey

被引：96

作者：

Land, Kate ^{[1
]}

Slosar, Anze ^{[1
,2
]}

Lintott, Chris ^{[1
]}

Andreescu, Dan ^{[3
]}

Bamford, Steven ^{[4
]}

Murray, Phil

Nichol, Robert ^{[4
]}

Raddick, M. Jordan ^{[5
]}

Schawinski, Kevin ^{[1
]}

Szalay, Alex ^{[5
]}

Thomas, Daniel ^{[4
]}

Vandenberg, Jan ^{[5
]}

机构：

[1] Univ Oxford, Oxford OX1 3RH, England

[2] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Lawrence Berkeley Natl Lab, Dept Phys, Berkeley, CA 94720 USA

[3] LinkLab, Bronx, NY 10471 USA

[4] Univ Portsmouth, ICG, Portsmouth PO1 2EG, Hants, England

[5] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2008年 / 388卷 / 04期

基金：

英国科学技术设施理事会;

关键词：

galaxies : spiral; large-scale structure of Universe;

D O I：

10.1111/j.1365-2966.2008.13490.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We re-examine the evidence for a violation of large-scale statistical isotropy in the distribution of projected spin vectors of spiral galaxies. We have a sample of similar to 37 000 spiral galaxies from the Sloan Digital Sky Survey, with their line of sight spin direction confidently classified by members of the public through the online project Galaxy Zoo. After establishing and correcting for a certain level of bias in our handedness results we find the winding sense of the galaxies to be consistent with statistical isotropy. In particular, we find no significant dipole signal, and thus no evidence for overall preferred handedness of the Universe. We compare this result to those of other authors and conclude that these may also be affected and explained by a bias effect.

引用

页码：1686 / 1692

页数：7

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