Spectroscopical confirmation of variability-selected active galactic nuclei

被引：0

作者：

Zitelli, V

Trevese, D

Vagnetti, F

机构：

[1] Osservatorio Astron Bologna, INAF, I-40127 Bologna, Italy

[2] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

来源：

BALTIC ASTRONOMY | 2004年 / 13卷 / 04期

关键词：

galaxies : active; galaxies : Seyfert; quasars : general;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The cosmological evolution of active galactic nuclei (AGN) luminosity function is poorly known at the faint end, since active nuclei fainter than their host galaxies cannot be selected by color techniques. A sample of low luminosity AGN candidates has been selected on the basis of their variability. We carried out spectroscopic observations with the WYFFOS multi-fiber facility at the 4.2 m William Herschel Telescope. Preliminary results are presented, indicating the validity of the selection technique.

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页码：661 / 664

页数：4

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