Institutional Repository of Radio Astronomy Research Laboratory
| A Newly Discovered Highly Variable IDV Source | |
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
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| 2007-06-01 | |
| Conference Name | Bursts, Pulses and Flickering: Wide-Field Monitoring of the Dynamic Radio Sky |
| Source Publication | Bursts, Pulses and Flickering: Wide-Field Monitoring of the Dynamic Radio Sky |
| Pages | 21 |
| Conference Date | June 12-15 2007 |
| Conference Place | Kerastari, Tripolis, Greece |
| Country | Greece |
| Contribution Rank | 3 |
| Abstract | 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 |
| URL | 查看原文 |
| Indexed By | 其他 |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4160 |
| Collection | 射电天文研究室_星系宇宙学研究团组 科研仪器设备产出_利用南山26米射电望远镜（NSRT）观测数据的文章 |
| Affiliation | 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 |
| Recommended Citation GB/T 7714 | Gabanyi, K. E.,Marchili, N.,Krichbaum, T. P.,et al. A Newly Discovered Highly Variable IDV Source[C],2007:21. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Gabanyi-2007-A Newly（207KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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