AN ANALYTICAL MODEL FOR SPHERICAL GALAXIES AND BULGES

被引：2407

作者：

HERNQUIST, L

机构：

[1] Institute for Advanced Study, Princeton, NJ

[2] Institute for Advanced Study, Princeton

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 356卷 / 02期

关键词：

Galaxies: photometry; Galaxies: structure;

D O I：

10.1086/168845

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A potential-density pair which closely approximates the de Vaucouleurs R1/4 law for elliptical galaxies is presented. It is shown that the intrinsic properties and projected distributions of this model can be evaluated analytically. In particular, the distribution function, density of states, and projected surface brightness and velocity dispersion are expressible in terms of elementary functions.

引用

页码：359 / 364

页数：6

共 17 条

[1]

Abramowitz M.., 1972, HDB MATH FUNCTIONS

[2]

[Anonymous], 2008, GALACTIC DYNAMICS, DOI DOI 10.1515/9781400828722

[3]

[Anonymous], 1948, ANN DASTROPHYS

[4]

[Anonymous], 1986, NUMERICAL RECIPES