UBVRI PHOTOMETRY OF STARS IN THE FIELDS OF X-RAY SELECTED BL LACERTAE OBJECTS

被引：57

作者：

SMITH, PS ^{[1
]}

JANNUZI, BT ^{[1
]}

ELSTON, R ^{[1
]}

机构：

[1] KITT PEAK NATL OBSERV,NATL OPT ASTRON OBSERV,TUCSON,AZ 85726

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 1991年 / 77卷 / 01期

关键词：

BL LACERTAE OBJECTS; PHOTOMETRY; X-RAYS; BINARIES;

D O I：

10.1086/191598

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present UBVRI photometry of stars in the fields of 38 X-ray selected BL Lacertae objects, two X-ray selected AGNs, and one X-ray binary system (possibly a cataclysmic variable). These stars are suitable for use as photometric comparison stars for optical monitoring programs involving these X-ray selected objects. A total of 166 observations of 87 stars were made on seven photometric nights. At least two stars were observed in every field. UBVRI measurements of three stars were made in the fields of MS 0950.9 + 4929, MS 1552.1 + 2020, and H2154-304. Four stars were measured in the field of H1426 + 428. Finding charts for all of these objects are included in this paper.

引用

页码：67 / &

共 29 条

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