Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3847/1538-4357/ab4516 |
| Determining Fireball Fates Using the ???;Criterion | |
| Sansom, Eleanor K.1; Gritsevich, Maria2,3,4; Devillepoix, Hadrien A. R.1; Jansen-Sturgeon, Trent1; Shober, Patrick1; Bland, Phil A.1; Towner, Martin C.1; Cupak, Martin1; Howie, Robert M.1; Hartig, Benjamin A. D.1 | |
| 通讯作者 | Sansom, Eleanor K. |
| 来源期刊 | ASTROPHYSICAL JOURNAL
 |
| ISSN | 0004-637X |
| EISSN | 1538-4357 |
| 出版年 | 2019 |
| 卷号 | 885期号:2 |
| 英文摘要 | As fireball networks grow, the number of events observed becomes unfeasible to manage by manual efforts. Reducing and analyzing big data requires automated data pipelines. Triangulation of a fireball trajectory can swiftly provide information on positions and, with timing information, velocities. However, extending this pipeline to determine the terminal mass estimate of a meteoroid is a complex next step. Established methods typically require assumptions to be made of the physical meteoroid characteristics (such as shape and bulk density). To determine which meteoroids may have survived entry there are empirical criteria that use a fireball?s final height and velocity?low and slow final parameters are likely the best candidates. We review the more elegant approach of the dimensionless coefficient method. Two parameters, ? (ballistic coefficient) and ? (mass loss), can be calculated for any event with some degree of deceleration, given only velocity and height information. ? and ? can be used to analytically describe a trajectory with the advantage that they are not mere fitting coefficients; they also represent the physical meteoroid properties. This approach can be applied to any fireball network as an initial identification of key events and determine on which to concentrate resources for more in-depth analyses. We used a set of 278 events observed by the Desert Fireball Network to show how visualization in an ??? diagram can quickly identify which fireballs are likely meteorite candidates. |
| 英文关键词 | Fireballs Meteors Bolides Meteoroids |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Australia ; Finland ; Russia |
| 开放获取类型 | Bronze, Green Published, Green Submitted |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000499886700001 |
| WOS关键词 | LOST CITY ; NETWORK ; METEORITES ; MASS ; VELOCITIES ; ATMOSPHERE ; INNISFREE ; EQUATIONS ; BOLIDES ; HEIGHT |
| WOS类目 | Astronomy & Astrophysics |
| WOS研究方向 | Astronomy & Astrophysics |
| EI主题词 | 2019-11-10 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/310802 |
| 作者单位 | 1.Curtin Univ, Space Sci & Technol Ctr, GPO Box U1987, Perth, WA 6845, Australia; 2.Univ Helsinki, Dept Phys, Helsinki, Finland; 3.Finnish Geospatial Res Inst FGI, Masala, Finland; 4.Ural Fed Univ, Inst Phys & Technol, Ekaterinburg, Russia |
| 推荐引用方式 GB/T 7714 | Sansom, Eleanor K.,Gritsevich, Maria,Devillepoix, Hadrien A. R.,et al. Determining Fireball Fates Using the ???;Criterion[J],2019,885(2). |
| APA | Sansom, Eleanor K..,Gritsevich, Maria.,Devillepoix, Hadrien A. R..,Jansen-Sturgeon, Trent.,Shober, Patrick.,...&Hartig, Benjamin A. D..(2019).Determining Fireball Fates Using the ???;Criterion.ASTROPHYSICAL JOURNAL,885(2). |
| MLA | Sansom, Eleanor K.,et al."Determining Fireball Fates Using the ???;Criterion".ASTROPHYSICAL JOURNAL 885.2(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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