English

Does the galaxy correlation length increase with the sample depth?

Astrophysics 2009-11-06 v1

Abstract

We have analyzed the behavior of the correlation length, r0r_0, as a function of the sample depth by extracting from the CfA2 redshift survey volume--limited samples out to increasing distances. For a fractal distribution, the value of r0r_0 would increase with the volume occupied by the sample. We find no linear increase for the CfA2 samples of the sort that would be expected if the Universe preserved its small scale fractal character out to the distances considered (60--100\hmpc\hmpc). The results instead show a roughly constant value for r0r_0 as a function of the size of the sample, with small fluctuations due to local inhomogeneities and luminosity segregation. Thus the fractal picture can safely be discarded.

Keywords

Cite

@article{arxiv.astro-ph/0104224,
  title  = {Does the galaxy correlation length increase with the sample depth?},
  author = {V. J. Martinez and B. Lopez-Marti and M. -J. Pons-Borderia},
  journal= {arXiv preprint arXiv:astro-ph/0104224},
  year   = {2009}
}

Comments

Accepted for publication in ApJL