| Multi-color optical variability of the TeV blazar Mrk 501 in the low-state | |
A. C. Gupta1 ; Deng WG(邓文国)1,2; Joshi, UC3; Bai JM(白金明)1; Lee, MG4; Gupta, AC (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Yunnan, Peoples R China.
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| 发表期刊 | NEW ASTRONOMY
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| 2008-08 | |
| 卷号 | 13期号:6页码:375-384 |
| DOI | 10.1016/j.newast.2007.12.001 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Optical Observations - Bl Lacertae Objects Individual (Mrk 501) |
| 摘要 | We report results based on the monitoring of the BL Lac object Mrk 501 in the optical (B, V and R) passbands from March to May 2000. Observations spread over 12 nights were carried out using 1.2 m Mount Abu Telescope, India and 61 cm Telescope at Sobaeksan Astronomy Observatory, South Korea. The aim is to study the intra-day variability (IDV), short term variability and color variability in the low state of the source. We have detected flux variation of 0.05 mag in the R-band in time scale of 15 min in one night. In the B and V passbands, we have less data points and it is difficult to infer any IDVs. Short term flux variations are also observed in the V and R bands during the observing run. No significant variation in color (B-R) has been detected but (V-R) shows variation during the present observing run. Assuming the shortest observed time scale of variability (15 min) to represent the disk instability or pulsation at a distance of five Schwarschild radii from the black hole (BH), mass of the central BH is estimated similar to 1.20 x 10(8) M circle dot. (c) 2007 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 1384-1076 |
| URL | 查看原文 |
| 归档日期 | 2009-05-26 |
| WOS记录号 | WOS:000255615900001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | BL LACERTAE OBJECTS ; ACTIVE GALACTIC NUCLEI ; RAY LOUD BLAZARS ; I RADIO-GALAXIES ; BLACK-HOLE MASS ; INTRADAY VARIABILITY ; X-RAY ; LAC OBJECTS ; ACCRETION DISKS ; COMPLETE SAMPLE |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/7037 |
| 专题 | 星系研究组 |
| 通讯作者 | Gupta, AC (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Yunnan, Peoples R China. |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China 2.Department of Physics, Yunnan University, Kunming, Yunnan 650091, China 3.Astronomy and Astrophysics Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, India 4.Astronomy Program, Seoul National University, Seoul 151-742, South Korea |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | A. C. Gupta,Deng WG,Joshi, UC,et al. Multi-color optical variability of the TeV blazar Mrk 501 in the low-state[J]. NEW ASTRONOMY,2008,13(6):375-384. |
| APA | A. C. Gupta,Deng WG,Joshi, UC,Bai JM,Lee, MG,&Gupta, AC .(2008).Multi-color optical variability of the TeV blazar Mrk 501 in the low-state.NEW ASTRONOMY,13(6),375-384. |
| MLA | A. C. Gupta,et al."Multi-color optical variability of the TeV blazar Mrk 501 in the low-state".NEW ASTRONOMY 13.6(2008):375-384. |
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