A micrometeor component of the 1998 Leonid shower
文献类型：期刊论文
| 作者 | Ma, YH ; He, YW; Williams, IP
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2001-08-01 |
| 卷号 | 325期号:2页码:457-462 |
| 关键词 | celestial mechanics comets : individual : 55P/Tempel-Tuttle meteors, meteoroids |
| ISSN号 | 0035-8711 |
| 英文摘要 | Most astronomers expected a significant meteor shower associated with the Leonid meteoroid stream to appear in 1998 and 1999. An enhanced shower was widely observed in both years, and details can be found in many published articles. In 1998, one remarkable feature was the appearance of a strong component, rich in bright meteors, which appeared about 16 h before the expected maximum of the main shower, but another observed feature was an abnormal peak in the ionosphere characteristic value f(b)E(s) which was detected about 18 h after the main shower. A very high value of f(b)E(s) persisted for over an hour. The likely explanation is that the ionosphere was bombarded by an additional swarm of meteoroids, much smaller than those that produce a visible trail or an ionization trail that can be picked up by radio detectors. The different dynamical behaviours between small and large meteoroids are investigated and, in consequence, an explanation for the observed phenomena is offered and 1933 is suggested as being the likely ejection time. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | COMET TEMPEL-TUTTLE ; METEOROID STREAM ; STORMS ; OUTBURST |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000170568100004 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8190]  |
| 专题 | 紫金山天文台_近地天体探测和太阳系天体研究团组 |
| 作者单位 | 1.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Acad Sinica, Natl Astron Observ, Beijing, Peoples R China 3.Univ London Queen Mary & Westfield Coll, Astron Unit, London E1 4NS, England 4.Elect Wave Propagat Inst China, Xinxiang 453003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, YH,He, YW,Williams, IP. A micrometeor component of the 1998 Leonid shower[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2001,325(2):457-462. |
| APA | Ma, YH,He, YW,&Williams, IP.(2001).A micrometeor component of the 1998 Leonid shower.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,325(2),457-462. |
| MLA | Ma, YH,et al."A micrometeor component of the 1998 Leonid shower".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 325.2(2001):457-462. |
入库方式： OAI收割
来源：紫金山天文台
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