中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Photometric monitoring of three BL Lacertae objects in 1993-1998

文献类型:期刊论文

作者Bai JM(白金明)1,2,3; Xie GZ(谢光中)1,2,3; Li KH(李开华)1,2,3; Zhang X(张雄)1,3; Liu WW(刘威卫)1,2; Bai, JM
刊名ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
出版日期1999-05
卷号136期号:3页码:455-460
关键词BL Lacertae objects : general BL Lac OJ 287 PRS 0735+178 galaxies : jets
ISSN号0275-1062
产权排序第一完成单位
通讯作者Bai, JM
英文摘要The results of optical photometric (BV RI) monitoring of three BL Lac objects over a time interval of about four years are presented. The sources are three classical radio-selected BL Lac objects, BL Lac, OJ 287 and PKS 0735+178. During our observation OJ 287 was in the stage of a large periodic outburst which consisted of at least two peaks. Almost all the observations obtained over consecutive nights detected intranight variations. In 1995 and 1996 BL Lac kept in faint states, with fewer and smaller rapid flares and fluctuations. On the contrary, in late 1997 BL Lac was at the stage of a large outburst, accompanied with much more large amplitude rapid flares and fluctuations. PKS 0735+178 was almost at its faint end from 1994 to early 1998. Over this time interval, the intraday variations and microvariations in PKS 0735+178 were rare and the amplitude was very small, except a rapid darkening of similar to 0.4 mag on 24 January 1995. Previous work by Webb et al. (1988); Wagner et al. (1996); Plan et al. (1997) also showed the same behaviour of variability as BL Lac and PKS 0735+178 in BL Lac, S5 0716+714, PKS 2155 - 304, respectively. We propose that the motion of orientation of the relativistic jet in a BL Lac object be responsible for these variability behaviours.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]INTRADAY VARIABILITY ; LAC OBJECTS ; OUTBURST ; OJ-287 ; CONFIRMATION ; PKS-2155-304 ; BLAZARS ; QUASARS ; JET
收录类别SCI
原文出处http://aas.aanda.org/articles/aas/abs/1999/09/ds7794/ds7794.html
语种英语
WOS记录号WOS:000080468600004
源URL[http://ir.ynao.ac.cn/handle/114a53/5378]  
专题云南天文台_丽江天文观测站(南方基地)
通讯作者Bai, JM
作者单位1.Yunnan Astronomical Observatory, The Chinese Academy of Sciences, Kunming 650011, China
2.United Laboratory of Optical Astronomy, The Chinese Academy of Sciences (ULOAC), China
3.Yunnan Astrophysics Center, Kunming 650011, China
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GB/T 7714
Bai JM,Xie GZ,Li KH,et al. Photometric monitoring of three BL Lacertae objects in 1993-1998[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1999,136(3):455-460.
APA Bai JM,Xie GZ,Li KH,Zhang X,Liu WW,&Bai, JM.(1999).Photometric monitoring of three BL Lacertae objects in 1993-1998.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,136(3),455-460.
MLA Bai JM,et al."Photometric monitoring of three BL Lacertae objects in 1993-1998".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 136.3(1999):455-460.

入库方式: OAI收割

来源:云南天文台

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