Measuring Galaxy Bias from the High-Order Correlation Functions
| dc.creator | JING, Y. P. | |
| dc.date | 1997-10-17 | |
| dc.date.accessioned | 2026-07-07T02:24:37Z | |
| dc.date.available | 2026-07-07T02:24:37Z | |
| dc.description | In this talk, I will show how to determine the biasing factor $b$ from the high-order moments of galaxies. The determination is based on the analytical modeling of primordial peaks and virialized halos and is independent of the currently unknown density parameter $Ω_0$ and other cosmological parameters. The observed high-oder moments of the APM galaxies require that the biasing factor $b$ be very close to 1, i.e. the optical galaxies are an unbiased tracer of the underlying mass distribution (on quasilinear scale). The theoretical argument can be easily generalized to the three-point correlation function and the bispectrum both of which can used as further observational tests to the important conclusion of $b\approx 1$ drawn from the high-order moments. Finally I present our preliminary results of the three-point correlation functions for the Las Campanas Redshift Survey. | |
| dc.description | 6 pages; LaTeX; to appear in the proceedings of IAU Symposium 183, Cosmological parameters and the evolution of the Universe, August 18-22, Kyoto | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9710188 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9710188 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/11658 | |
| dc.subject | Astrophysics | |
| dc.title | Measuring Galaxy Bias from the High-Order Correlation Functions | |
| dc.type | text |