ON THE RATIO [N-II]/H-ALPHA IN THE NUCLEUS OF SEYFERT-2 AND LINER GALAXIES

被引：39

作者：

STORCHIBERGMANN, T

机构：

[1] Instituto de Fisica, Universidade Federal Do Rio Grande Do sul, Porto Alegre, RS

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1991年 / 249卷 / 03期

关键词：

D O I：

10.1093/mnras/249.3.404

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The dependence of the [N II]/H alpha-ratio of 180 Seyfert 2 and LINER nuclei on the aperture used in the observations is investigated and quantified. When the aperture effect is taken into account it can be concluded that the majority of Seyfert 2 and LINER galaxies present [N II]/H alpha > 1.5, which means an overabundance of nitrogen in the nucleus, according to results of previous works. The relationship of [N II]/H alpha to nuclear compact radio emission, absolute magnitude and morphological type of parent galaxy are also investigated.

引用

页码：404 / 408

页数：5

共 36 条

[1] EXTENDED OPTICAL-LINE-EMITTING GAS IN RADIO GALAXIES - BROAD-BAND OPTICAL NARROW-BAND OPTICAL, AND RADIO IMAGING OF A REPRESENTATIVE SAMPLE [J].