Detecting Earth's temporarily-captured natural satellites-Minimoons

被引：35

作者：

Bolin, Bryce ^{[1
,2
]}

Jedicke, Robert ^{[1
]}

Granvik, Mikael ^{[3
]}

Brown, Peter ^{[4
]}

Howell, Ellen ^{[5
]}

Nolan, Michael C. ^{[5
]}

Jenniskens, Peter ^{[6
]}

Chyba, Monique ^{[7
]}

Patterson, Geoff ^{[7
]}

Wainscoat, Richard ^{[1
]}

机构：

[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[2] Univ Phoenix, Honolulu, HI 96813 USA

[3] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland

[4] Univ Western Ontario, Dept Phys & Astron, London, ON, Canada

[5] Natl Astron & Ionosphere Ctr, Arecibo Observ, Arecibo, PR 00613 USA

[6] SETI Inst, Carl Sagan Ctr, Mountain View, CA 94043 USA

[7] Univ Hawaii, Dept Math, Honolulu, HI 96822 USA

来源：

ICARUS | 2014年 / 241卷

基金：

芬兰科学院; 加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

Near-Earth Objects; Asteroids; dynamics; Meteors; INFRARED-SURVEY-EXPLORER; RADAR; PHOTOMETRY; YARKOVSKY; ASTEROIDS; VIDEO; ORBIT; RADIATION; METEORS; NEOWISE;

D O I：

10.1016/j.icarus.2014.05.026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a study on the discoverability of temporarily captured orbiters (TCOs) by present day or near-term anticipated ground-based and space-based facilities. TCOs (Granvik, M., Vaubaillon, J., Jedicke, R. [2012]. Icarus 218, 262-277) are potential targets for spacecraft rendezvous or human exploration (Chyba, M., Patterson, G., Picot, G., Granvik, M., Jedicke, R., Vaubaillon, J. [2014]. J. Indust. Manage. Optim. 10, 477-501) and provide an opportunity to study the population of the smallest asteroids in the Solar System. We find that present day ground-based optical surveys such as Pan-STARRS and ATLAS can discover the largest TCOs over years of operation. A targeted survey conducted with the Subaru telescope can discover TCOs in the 0.5-1.0 m diameter size range in about 5 nights of observing. Furthermore, we discuss the application of space-based infrared surveys, such as NEOWISE, and ground-based meteor detection systems such as CAMS, CAMO and ASGARD in discovering TCOs. These systems can detect TCOs but at a uninteresting rate. Finally, we discuss the application of bi-static radar at Arecibo and Green Bank to discover TCOs. Our radar simulations are strongly dependent on the rotation rate distribution of the smallest asteroids but with an optimistic distribution we find that these systems have >80% chance of detecting a >10 cm diameter TCO in about 40 h of operation. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：280 / 297

页数：18

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