Comparison between Leonid meteor shower observations during 1998-2000
文献类型：期刊论文
| 作者 | Wu GJ(吴光节)1,2 ; Zhang ZS(张周生)1
|
| 刊名 | PLANETARY AND SPACE SCIENCE
 |
| 出版日期 | 2002-04 |
| 卷号 | 50期号:4页码:379-384 |
| 关键词 | meteor showers the Leonids mass rate |
| ISSN号 | 0032-0633 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Wu, GJ (reprint author), Chinese Acad Sci, Natl Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | Observations for the Leonid meteor shower from the Gaomeigu station of Yunnan Observatory during 1998-2000 are analyzed in this paper. We introduce a new statistical quantity zenithal hourly mass rates (ZHMR) to deal with the mass flow of a meteoroid stream. The variations of r, ZHR and ZHMR are given. During our observations, ZHMR had often a value of the order of 10(-6)-10(-3) g/km(2) h. The variation of r may be more strong and frequent in 1998 than in 1999, but in most cases, it was about 2.0. Interesting phenomena like filamentary structure was observed in ZHR and mass influx profiles. In our observations, the filamentary structure has no periodic variation. In general, the ZHMR and ZHR would show different behaviour and go to their maximum at different times. The ZHMR may become a new statistic to support comparisons between different observers, and might be a more useful quantity for predictions. In 1999, the dust trails of 4- and 5-revolution (rev) seem to leave nothing at the exact predicted time. At most, we estimate the ZHR introduced solely by the 4-rev. trail should not be over 50. (C) 2002 Elsevier Science Ltd. All rights reserved. |
| 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] | STREAM ACTIVITY |
| 收录类别 | SCI ; EI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S0032063302000077 |
| 语种 | 英语 |
| WOS记录号 | WOS:000176453800005 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4145]  |
| 专题 | 云南天文台_其他 |
| 作者单位 | 1.unnan Observatory, National Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, People's Republic of China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), China |
| 推荐引用方式 GB/T 7714 | Wu GJ,Zhang ZS. Comparison between Leonid meteor shower observations during 1998-2000[J]. PLANETARY AND SPACE SCIENCE,2002,50(4):379-384. |
| APA | Wu GJ,&Zhang ZS.(2002).Comparison between Leonid meteor shower observations during 1998-2000.PLANETARY AND SPACE SCIENCE,50(4),379-384. |
| MLA | Wu GJ,et al."Comparison between Leonid meteor shower observations during 1998-2000".PLANETARY AND SPACE SCIENCE 50.4(2002):379-384. |
入库方式： OAI收割
来源：云南天文台
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