GALAXY FORMATION AND THE PEAKS FORMALISM

被引：65

作者：

KATZ, N

QUINN, T

GELB, JM

机构：

[1] THEORET PHYS, OXFORD OX1 3NP, ENGLAND

[2] NASA, CTR FERMILAB ASTROPHYS, BATAVIA, IL 60510 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 265卷 / 03期

关键词：

METHODS; NUMERICAL; GALAXIES; CLUSTERING; FORMATION; COSMOLOGY; THEORY; LARGE-SCALE STRUCTURE OF UNIVERSE;

D O I：

10.1093/mnras/265.3.689

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A large N-body simulation is used to compare the galaxies found by tagging peaks in the linear density field with the haloes that actually form. A variety of filters on the density field are tried in order to improve this correspondence, but none seems to do particularly well. The correlation function and velocity dispersion of the tagged peaks and the actual haloes also do not correspond very well. These comparisons bring into question the results of any study of galaxy formation that assumes that galaxies form at peaks in the initial density field, or simulations of large-scale structure that use the high-peak model to determine the galaxy distribution.

引用

页码：689 / 705

页数：17

共 27 条

[1] THE STATISTICS OF PEAKS OF GAUSSIAN RANDOM-FIELDS [J].