DARK MATTER IN SPIRAL GALAXIES

被引：41

作者：

PERSIC, M ^{[1
]}

SALUCCI, P ^{[1
]}

机构：

[1] UNIV DURHAM,DEPT PHYS,DURHAM DH1 3LE,ENGLAND

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 355卷 / 01期

关键词：

Dark matter; Galaxies: internal motions; Galaxies: photometry; Galaxies: structure;

D O I：

10.1086/168739

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Tully-Fisher relation is used to probe dark matter (DM) in the optical regions of spiral galaxies. By establishing it at several different isophotal radii in an appropriate sample of 58 galaxies with good B-band photometry and rotation curves, we find that some of its attributes such as scatter, residuals, nonlinearity, and bias dramatically decrease moving from the disk edge inward. We show how this behavior challenges any mass model which assumes no DM or a luminosity-independent DM mass fraction interior to the optical radius of spiral galaxies.

引用

页码：44 / 51

页数：8

共 45 条

[1] DDO-154 - A DARK GALAXY [J].