Models of optical/UV continuum in AGN: Constraints from the NGC 5548 monitoring campaign

被引：15

作者：

Loska, Z

Czerny, B

机构：

[1] Nicolaus Copernicus Astron. Center, 00-716 Warsaw

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1997年 / 284卷 / 04期

关键词：

accretion; accretion discs; galaxies; active; individual; NGC; 5548; Seyfert; X-rays;

D O I：

10.1093/mnras/284.4.946

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyse the data from the international Ultraviolet Explorer (IUE) observational campaign on the Seyfert galaxy NGC 5548 in the context of 10 phenomenological models. On the basis of the optical/UV data, as well as of constraints from the X-ray observations, we can favour one model of the nucleus: an accretion disc with an inner radius cut-off surrounded by a hot corona. The second acceptable model for optical/UV data is a distribution of optically thin clouds. However, X-ray constraints which were crucial in the analysis of disc-type models could not be applied; further development of this model is necessary.

引用

页码：946 / 956

页数：11

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