High resolution studies of the IDV quasar J1128+592
文献类型：会议论文
| 作者 | Gabanyi, Krisztina Eva1,2; Marchili, Nicola3; Krichbaum, Thomas3; Fuhrmann, Lars3; Liu, Xiang4 ; Song, Hua-Gang4
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| 出版日期 | 2010-03-01 |
| 会议日期 | SEP 02-04, 2009 |
| 会议地点 | Eotvos Univ, Budapest, HUNGARY |
| 关键词 | Astrophysics Radio astronomy Telescopes Blazars High resolution Interstellar matter Long baseline array Lower limits Milky ways Modulation models Multi frequency ON time Radio sources Seasonal cycle Time-scales Variability patterns Wavelength regimes |
| 卷号 | 218 |
| DOI | 10.1088/1742-6596/218/1/012013 |
| 页码 | 12013 |
| 国家 | Hungary |
| 英文摘要 | J1128+592 is a compact radio quasar and, as 30% of flat spectrum radio sources, shows fast variations in the cm-wavelength regime on time-scales of an hour to few days. Such phenomenon is often explained by scattering of radio waves in the turbulent, ionized interstellar matter of the Milky Way. Regular monitoring observations of J1128+592 performed by the Effelsberg 100-meter and the Urumqi 25-meter radio telescope during the last four years confirmed this, since a seasonal cycle of the variability time-scale was revealed. This effect is one of the most convincing argument in favor of the interstellar scattering induced fast radio variations in blazars. Multi-epoch, multi-frequency observations made by the Very Long Baseline Array (VLBA) together with the annual modulation model enabled us to determine a lower limit of the distance of the screen responsible for the rapid variability. Additionally, it revealed source-intrinsic-change, which affected the variability pattern. 2010 IOP Publishing Ltd. |
| 源文献作者 | ForgacsDajka, E ; Plachy, E ; Molnar, L |
| 产权排序 | 4 |
| 会议录 | Journal of Physics: Conference Series 218 (2010) 012013
 |
| 会议录出版者 | Institute of Physics Publishing |
| 会议录出版地 | DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| ISSN号 | 1742-6588;1742-6596 |
| WOS记录号 | WOS:000287785100013 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3139]  |
| 专题 | 星系宇宙学研究团组 射电天文研究室_利用南山26米射电望远镜观测数据的文章 |
| 通讯作者 | Gabanyi, Krisztina Eva |
| 作者单位 | 1.FOMI Satellite Geodetic Observatory, Budapest, P.O.Box 585 1592 Hungary; 2.Hungarian Academy of Sciences, Research Group for Physical Geodesy and Geodynamics, Budapest, Hungary; 3.Max-Planck-Institute f¨ur Radioastronomie, Auf dem H¨ugel 69, Bonn 53121 Germany; 4.Urumqi Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Urumqi 830011, PR China |
| 推荐引用方式 GB/T 7714 | Gabanyi, Krisztina Eva,Marchili, Nicola,Krichbaum, Thomas,et al. High resolution studies of the IDV quasar J1128+592[C]. 见:. Eotvos Univ, Budapest, HUNGARY. SEP 02-04, 2009. |
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来源：新疆天文台
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