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

页码：212 / 217

页数：6

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