The continuum slopes of optically selected QSOs

被引:48
作者
Francis, PJ
机构
[1] School of Physics, University of Melbourne, Parkville
来源
PUBLICATIONS ASTRONOMICAL SOCIETY OF AUSTRALIA | 1996年 / 13卷 / 03期
关键词
galaxies; quasars; general;
D O I
10.1017/S1323358000020877
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Quasi-simultaneous optical/near-IR photometry is presented for a sample of 37 luminous optically selected QSOs drawn from the Large Bright QSO Survey. Most of the QSOs have decreased in brightness since discovery; this is expected in flux-limited samples. The continuum shape of most of the QSOs can be represented by a power law of the form F(nu) proportional to nu(-0.3), but a few have softer (redder) continuum slopes.
引用
收藏
页码:212 / 217
页数:6
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