中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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.

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