Redshift Distortions: Perturbative and N-body Results

Details Redshift Distortions: Perturbative and N-body Results Redshift Distortions: Perturbative and N-body Results

1998-08-10

arxiv.org/abs/astro-ph/9808088v1

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure. To appear in the Proceedings of the 14th IAP Meeting, Wide Field Surveys in Cosmology

Scientific paper

I discuss the evolution of the redshift-space bispectrum via perturbation theory (PT) and large high-resolution numerical simulations. At large scales, we give the multipole expansion of the bispectrum in PT, which provides a natural way to break the degeneracy between bias and $\Omega$ present in measurements of the power spectrum distortions. At intermediate scales, we propose a simple phenomenological model to take into account non-linear effects. N-body results show that at small scales the perturbative shape of the bispectrum monopole in redshift-space is preserved, breaking the hierarchical form valid in the absence of distortions.

Affiliated with

Also associated with

No associations

Rating

Redshift Distortions: Perturbative and N-body Results 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 Redshift Distortions: Perturbative and N-body Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Redshift Distortions: Perturbative and N-body Results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-256485