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
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| 刊名 | ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
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| 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 |
| 推荐引用方式 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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