Multipole expansion model in gravitational lensing

被引：2

作者：

Fukuyama, T ^{[1
]}

Kakigi, Y ^{[1
]}

Okamura, T ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT PHYS,MEGURO KU,TOKYO 152,JAPAN

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 1997年 / 6卷 / 04期

关键词：

gravitational lensing; multipole expansion model;

D O I：

10.1142/S021827189700025X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Nontransparent models of the multipole expansion model and the two point-mass model are analyzed from the catastrophe theory. Singularity behaviours of 2(n)-pole moments are discussed. We apply these models to the triple quasar PG1115+080 and compare with the typical transparent model, softened power law spheroids. The multipole expansion model gives the best fit among them.

引用

页码：425 / 447

页数：23

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