V RI comparison stars for selected active galaxies

被引：11

作者：

Bachev, R

Strigachev, A

Dimitrov, V

机构：

[1] Bulgarian Acad Sci, Inst Astron, BU-1784 Sofia, Bulgaria

[2] Royal Observ Belgium, Brussels, Belgium

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 2000年 / 147卷 / 02期

关键词：

galaxies; Seyfert;

D O I：

10.1051/aas:2000296

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present V (Johnson) and RI (Cousins) magnitudes of field comparison stars for 12 bright Seyfert galaxies. These stars are closer than 6' (typically 3'-4') to the galaxy and have V magnitudes between 10(m) and 6(m). The sequences could be used for CCD monitoring and differential photometry of these active galaxies, aimed to better understanding the physics of their variability. Photometric errors of measured stars are in the range 0(.)(m)03 - 0(.)(m)06. Finding charts (15' x 15') are also included.

引用

页码：175 / 180

页数：6

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