干旱区生态环境知识资源中心(Arid): Observation of metre-scale impactors by the Desert Fireball Network

Arid

DOI	10.1093/mnras/sty3442
	Observation of metre-scale impactors by the Desert Fireball Network
	Devillepoix, H. A. R.; Bland, P. A.; Sansom, E. K.; Towner, M. C.; Cupak, M.; Howie, R. M.; Hartig, B. A. D.; Jansen-Sturgeon, T.; Cox, M. A.
通讯作者	Devillepoix, H. A. R.
来源期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN	0035-8711
EISSN	1365-2966
出版年	2019
卷号	483 期号:4 页码:5166-5178
英文摘要	The Earth is impacted by 35-40 metre-scale objects every year. These meteoroids are the low-mass end of impactors that can do damage on the ground. Despite this they are very poorly surveyed and characterized, too infrequent for ground-based fireball observation efforts, and too small to be efficiently detected by NEO telescopic surveys whilst still in interplanetary space. We want to evaluate the suitability of different instruments for characterizing metre-scale impactors and where they come from. We use data collected over the first 3 yr of operation of the continent-scale Desert Fireball Network, and compare results with other published results as well as orbital sensors. We find that although the orbital sensors have the advantage of using the entire planet as collecting area, there are several serious problems with the accuracy of the data, notably the reported velocity vector, which is key to getting an accurate pre-impact orbit and calculating meteorite fall positions. We also outline dynamic range issues that fireball networks face when observing large meteoroid entries.
英文关键词	meteorites, meteors, meteoroids minor planets asteroids: general
类型	Article
语种	英语
国家	Australia
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000462281900065
WOS关键词	NEAR-EARTH OBJECTS ; SOURCE REGIONS ; CHELYABINSK ; METEOROIDS ; DISRUPTION ; METEORITE ; AIRBURST
WOS类目	Astronomy & Astrophysics
WOS研究方向	Astronomy & Astrophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217686
作者单位	Curtin Univ, Sch Earth & Planetary Sci, GPO Box U1987, Perth, WA 6845, Australia
推荐引用方式 GB/T 7714	Devillepoix, H. A. R.,Bland, P. A.,Sansom, E. K.,et al. Observation of metre-scale impactors by the Desert Fireball Network[J],2019,483(4):5166-5178.
APA	Devillepoix, H. A. R..,Bland, P. A..,Sansom, E. K..,Towner, M. C..,Cupak, M..,...&Cox, M. A..(2019).Observation of metre-scale impactors by the Desert Fireball Network.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,483(4),5166-5178.
MLA	Devillepoix, H. A. R.,et al."Observation of metre-scale impactors by the Desert Fireball Network".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 483.4(2019):5166-5178.