Institutional Repository of Radio Astronomy Research Laboratory
| High resolution studies of the IDV quasar J1128+592 | |
Gabanyi, Krisztina Eva1,2; Marchili, Nicola3; Krichbaum, Thomas3; Fuhrmann, Lars3; Liu, Xiang4 ; Song, Hua-Gang4
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| 2010-03-01 | |
| Conference Name | 5th Workshop of Young Researchers in Astronomy and Astrophysics |
| Source Publication | Journal of Physics: Conference Series 218 (2010) 012013 |
| Volume | 218 |
| Pages | 12013 |
| Conference Date | SEP 02-04, 2009 |
| Correspondent Email | gabanyik@sgo.fomi.hu |
| Conference Place | Eotvos Univ, Budapest, HUNGARY |
| Country | Hungary |
| Author of Source | ForgacsDajka, E ; Plachy, E ; Molnar, L |
| Publication Place | DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND |
| Publisher | Institute of Physics Publishing |
| Contribution Rank | 4 |
| Abstract | 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. |
| Keyword | 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 |
| DOI | 10.1088/1742-6596/218/1/012013 |
| URL | 查看原文 |
| Indexed By | EI ; CPCI |
| Language | 英语 |
| ISSN | 1742-6588;1742-6596 |
| WOS ID | WOS:000287785100013 |
| EI Accession Number | 20102913087891 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3139 |
| 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 |
| Corresponding Author | Gabanyi, Krisztina Eva |
| Affiliation | 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 |
| Recommended Citation GB/T 7714 | Gabanyi, Krisztina Eva,Marchili, Nicola,Krichbaum, Thomas,et al. High resolution studies of the IDV quasar J1128+592[C]//ForgacsDajka, E, Plachy, E, Molnar, L. DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND:Institute of Physics Publishing,2010:12013. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Gabanyi-2010-High re（431KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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