THE TIMESCALES OF THE OPTICAL VARIABILITY OF BLAZARS .3. OJ 287 AND BL LACERTAE

被引：134

作者：

CARINI, MT

MILLER, HR

NOBLE, JC

GOODRICH, BD

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,IUE OBSERV,SCI PROGR COMP SCI CORP,GREENBELT,MD 20771

[2] GEORGIA STATE UNIV,DEPT PHYS & ASTRON,ATLANTA,GA 30303

[3] NATL OPT ASTRON OBSERV,TUCSON,AZ 85726

来源：

ASTRONOMICAL JOURNAL | 1992年 / 104卷 / 01期

关键词：

D O I：

10.1086/116217

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The BL Lacertae objects OJ 287 and BL Lac have been photometrically monitored in an effort to study the nature of optical variations which may occur on timescales ranging from years to less than a day. The results of ten years of photometric monitoring of these two objects show variations which are consistent with those reported by other authors. No strong dependence of color with source brightness was detected, although both sources exhibited a weak tendency to be bluer when brighter. Microvariability was observed for both objects; variations as large as 0.1 mag/hr were observed for BL Lac and changes as large as 0.08 mag/hr were observed for OJ 287. No evidence for a periodicity was found in the observed variations of either object.

引用

页码：15 / 27

页数：13

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