Redshift Distortions: Perturbative and N-body Results
| dc.creator | Scoccimarro, Roman | |
| dc.date | 1998-08-10 | |
| dc.date.accessioned | 2026-07-07T02:27:35Z | |
| dc.date.available | 2026-07-07T02:27:35Z | |
| dc.description | 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 $Ω$ 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. | |
| dc.description | 4 pages, 1 figure. To appear in the Proceedings of the 14th IAP Meeting, Wide Field Surveys in Cosmology | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9808088 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9808088 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/12755 | |
| dc.subject | Astrophysics | |
| dc.title | Redshift Distortions: Perturbative and N-body Results | |
| dc.type | text |