Multiband optical variability of three TeV blazars on diverse time-scales
文献类型：期刊论文
| 作者 | Gupta, Alok C.2; Agarwal, A.2; Bhagwan, J.2,3; Strigachev, A.4,5; Bachev, R.4,5; Semkov, E.4,5; Gaur, H.6; Damljanovic, G.1; Vince, O.1; Wiita, Paul J.7 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 458期号:1页码:1127-1137 |
| 关键词 | Galaxies: Active Bl Lacertae Objects: General Bl Lacertae Objects: Individual: Mrk 501 Bl Lacertae Objects: Individual: Pg 1553+113 Bl Lacertae Objects: Individual: Pks 1510-089 |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stw377 |
| 英文摘要 | We present our optical photometric observations of three TeV blazars, PKS 1510-089, PG 1553+113, and Mrk 501, taken using two telescopes in India, one in Bulgaria, one in Greece, and one in Serbia during 2012-2014. These observations covered a total of 95 nights with a total of 202 B filter frames, 247 images in V band, 817 in R band while 229 images were taken in the I filter. This work is focused on multiband flux and colour variability studies of these blazars on diverse time-scales which are useful in understanding the emission mechanisms. We studied the variability characteristics of above three blazars and found all to be active over our entire observational campaigns. We also searched for any correlation between the brightness of the sources and their colour indices. During the times of variability, no significant evidence for the sources to display spectral changes correlated with magnitude was found on time-scales of a few months. We briefly discuss the possible physical mechanisms most likely responsible for the observed flux variability. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000374568900077 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://119.78.226.72/handle/331011/32817]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Gupta, Alok C.; Agarwal, A. |
| 作者单位 | 1.Astron Observ, Volgina 7, Belgrade 11060, Serbia 2.Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263002, India 3.Pt Ravishankar Shukla Univ, Sch Studies Phys & Astrophys, Amanaka GE Rd, Raipur 492010, Madhya Pradesh, India 4.Bulgarian Acad Sci, Inst Astron, 72 Tsarigradsko Shosse Blvd, BU-1784 Sofia, Bulgaria 5.Bulgarian Acad Sci, Natl Astron Observ, 72 Tsarigradsko Shosse Blvd, BU-1784 Sofia, Bulgaria 6.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China 7.Coll New Jersey, Dept Phys, 2000 Pennington Rd, Ewing, NJ 08628 USA |
| 推荐引用方式 GB/T 7714 | Gupta, Alok C.,Agarwal, A.,Bhagwan, J.,et al. Multiband optical variability of three TeV blazars on diverse time-scales[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,458(1):1127-1137. |
| APA | Gupta, Alok C..,Agarwal, A..,Bhagwan, J..,Strigachev, A..,Bachev, R..,...&Wiita, Paul J..(2016).Multiband optical variability of three TeV blazars on diverse time-scales.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,458(1),1127-1137. |
| MLA | Gupta, Alok C.,et al."Multiband optical variability of three TeV blazars on diverse time-scales".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 458.1(2016):1127-1137. |
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来源：上海天文台
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