• DOI:10.1111/j.1365-2966.2008.13490.x
• Corpus ID: 15266903

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

@article{Land2008GalaxyZT,
  title={Galaxy Zoo: the large-scale spin statistics of spiral galaxies in the Sloan Digital Sky Survey},
  author={Kate R. Land and An{\vz}e Slosar and Chris J. Lintott and Daniel Andreescu and Steven Bamford and P. G. Murray and Robert C. Nichol and M. Jordan Raddick and Kevin Schawinski and Alexander S. Szalay and Daniel Thomas and Jan vandenBerg},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2008},
  volume={388},
  pages={1686-1692}
}

• K. Land, A. Slosar, +9 authors J. vandenBerg
• Published 22 March 2008
• Physics
• Monthly Notices of the Royal Astronomical Society

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 ∼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.