A Newly Discovered Highly Variable IDV Source
文献类型:会议论文
作者 | Gabanyi, K. E.1,2,3; Marchili, N.3; Krichbaum, T. P.3; Fuhrmann, L.3; Britzen, S.3; Witzel, A.3; Zensus, J. A.3; Liu, X.4; Song, H. G.4; Han, J. L.5 |
出版日期 | 2007-06-01 |
会议日期 | June 12-15 2007 |
会议地点 | Kerastari, Tripolis, Greece |
页码 | 21 |
国家 | Greece |
英文摘要 | Short time scale radio variations of compact extragalactic radio quasars and blazars known as IntraDay Variability (IDV) can be explained in at least some sources as a propagation effect; the variations are interpreted as scintillation of radio waves in the turbulent interstellar medium of the Milky Way. One of the most convincing observational arguments in favour of a propagationinduced variability scenario is the observed annual modulation in the characteristic variability time scale due to the Earth's orbital motion. So far there are only two sources known with a well-constrained seasonal cycle. J1128+592 is a recently discovered, highly variable IDV source. Previous, densely time-sampled flux-density measurements with the Effelsberg 100-m radio telescope (Germany) and the Urumqi 25-m radio telescope (China), strongly indicate an annual modulation of the time scale. Here, we summarise the annual modulation model derived using all the measurements, carried out in the last 2.5 years. Bursts, Pulses and Flickering:Wide-field monitoring of the dynamic radio sky June 12-15 2007 Kerastari, Tripolis, Greece |
产权排序 | 3 |
会议录 | Bursts, Pulses and Flickering: Wide-Field Monitoring of the Dynamic Radio Sky |
语种 | 英语 |
URL标识 | 查看原文 |
源URL | [http://ir.xao.ac.cn/handle/45760611-7/4160] |
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 |
作者单位 | 1.HAS, Research Group for Physical Geodesy and Geodynamics, Budapest, Hungary; 2.FÖMI, Satellite Geodetic Observatory, Penc, Hungary; 3.Max-Planck-Institut für Radioastronomie, Bonn, Germany; 4.Urumqi Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Urumqi 830011, PR China; 5.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, PR China |
推荐引用方式 GB/T 7714 | Gabanyi, K. E.,Marchili, N.,Krichbaum, T. P.,et al. A Newly Discovered Highly Variable IDV Source[C]. 见:. Kerastari, Tripolis, Greece. June 12-15 2007. |
入库方式: OAI收割
来源:新疆天文台
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