OPTICAL-PROPERTIES OF QUASARS .2. EMISSION-LINE GEOMETRY AND RADIO PROPERTIES

被引:64
作者
JACKSON, N
BROWNE, IWA
机构
[1] Nuffield Radio Astronomy Laboratories, Macclesfield, Cheshire
关键词
D O I
10.1093/mnras/250.2.422
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We make use of the spectrophotometric data presented in Paper I to investigate the optical properties of radio-loud quasars. We briefly review the evidence for anisotropic emission from quasars. From our data we argue that Fe II line emission, H-beta line emission and optical continuum emission are all anisotropic, and attempt to clarify the degree of anisotropy of each component by correlations with the degree of radio core dominance. The width of the H-beta line and Balmer decrements are shown to be consistent with a two-component model for H-beta emission. The correlation between the equivalent width of the [O III] narrow line and R is investigated. Finally, we discuss profiles of narrow lines and suggest that line shape is related to R in a manner that suggests an axisymmetric distribution for the narrow-line clouds.
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页码:422 / 431
页数:10
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