The IDV source J 1128+5925, a new candidate for annual modulation?
文献类型：期刊论文
| 作者 | Gabanyi, K. E.; Marchili, N.; Krichbaum, T. P.; Britzen, S.; Fuhrmann, L.; Witzel, A.; Zensus, J. A.; Mueller, P.; Liu, X.; Song, H. G. |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 470期号:1页码:83-95 |
| 关键词 | quasars : individual : J 1128+5925 scattering radio continuum : galaxies ISM : structure |
| 英文摘要 | Context. Short time-scale radio variations of compact extragalactic radio sources, known as IntraDay Variability (IDV), can be explained in at least some sources by a source-extrinsic effect, in which the variations are interpreted as scintillation of radio waves caused by the turbulent interstellar medium of the Milky Way. One of the most convincing observational arguments in favour of propagation-induced variability is the so-called "annual modulation" of the characteristic variability time-scale, which is due to the orbital motion of the Earth. So far there are only two sources known which show such a well-defined seasonal cycle, a few more sources with fewer data can be regarded as possible candidates for this effect. However, source-intrinsic effects, such as structural variations, can also cause the observed changes of the variability time-scale. Data for the new, recently discovered, and highly variable IDV source J 1128+5925 are presented. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247977400011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7243]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Max Planck Inst Radioastron, D-53121 Bonn, Germany 2.Hungarian Acad Sci, Res Grp Phys Geodesy & Geosynam, H-1051 Budapest, Hungary 3.Chinese Acad Sci, Natl Astron Observ, Urumqi Observ, Urumqi 830011, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gabanyi, K. E.,Marchili, N.,Krichbaum, T. P.,et al. The IDV source J 1128+5925, a new candidate for annual modulation?[J]. ASTRONOMY & ASTROPHYSICS,2007,470(1):83-95. |
| APA | Gabanyi, K. E..,Marchili, N..,Krichbaum, T. P..,Britzen, S..,Fuhrmann, L..,...&Sun, X. H..(2007).The IDV source J 1128+5925, a new candidate for annual modulation?.ASTRONOMY & ASTROPHYSICS,470(1),83-95. |
| MLA | Gabanyi, K. E.,et al."The IDV source J 1128+5925, a new candidate for annual modulation?".ASTRONOMY & ASTROPHYSICS 470.1(2007):83-95. |
入库方式： OAI收割
来源：国家天文台
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