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PMO OpenIR  > 近地天体探测和太阳系天体研究团组  > 期刊论文
题名: The velocity distribution of periodic comets and the meteor shower on Mars
作者: Ma YueHua(马月华); Williams, IP; Ip, WH; Chen, WP
刊名: ASTRONOMY & ASTROPHYSICS
出版日期: 2002-10-01
卷号: 394, 期号:1, 页码:311-316
关键词: celestial mechanics ; comets : general ; meteors, meteoroids
DOI: 10.1051/0004-6361:20021099
文章类型: Article
英文摘要: The collision velocities with Mars of the known periodic comets with perihelion distances less than the orbital radius of Mars 1.52 au are calculated and statistically analyzed. The velocity distribution shows that short-period comets usually have smaller collision velocities than the long-period comets whether they are numbered or unnumbered. For comets with period P less than or equal to 270 y, most collision velocities with Mars are less than 30 km s(-1). These velocities are smaller than the corresponding collision velocities with Earth. Based on the similarity of the velocity distributions of the comets and meteoroid streams, meteor showers on Mars are discussed briefly.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: STREAMS ; SPACECRAFT ; DANGER
收录类别: SCI
语种: 英语
WOS记录号: WOS:000178575000037
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15810
Appears in Collections:近地天体探测和太阳系天体研究团组_期刊论文

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作者单位: 1.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Univ London Queen Mary & Westfield Coll, Astron Unit, London E1 4NS, England
3.Natl Cent Univ, Inst Astron, Chungli 32054, Taiwan
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