Spectral properties of near-Earth asteroids: Evidence for sources of ordinary chondrite meteorites

被引：114

作者：

Binzel, RP ^{[1
]}

Bus, SJ ^{[1
]}

Burbine, TH ^{[1
]}

Sunshine, JM ^{[1
]}

机构：

[1] SCI APPLICAT INT CORP,CHANTILLY,VA 22021

来源：

SCIENCE | 1996年 / 273卷 / 5277期

关键词：

D O I：

10.1126/science.273.5277.946

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Although ordinary chondrite (OC) meteorites dominate observed falls, the identification of near-Earth and main-belt asteroid sources has remained elusive, Telescopic measurements of 35 near-Earth asteroids (similar to 3 kilometers in diameter) revealed six that have visible wavelength spectra similar to laboratory spectra of OC meteorites. Near-Earth asteroids were found to have spectral properties that span the range between the previously separated domains of OC meteorites and the most common (S class) asteroids, suggesting a link. This range of spectral properties could arise through a diversity of mineralogies and regolith particle sizes, as well as through a time-dependent surface weathering process.

引用

页码：946 / 948

页数：3

共 27 条

[1]

Bell J.F., 1989, ASTEROIDS, P921

[2] DISCOVERY OF A MAIN-BELT ASTEROID RESEMBLING ORDINARY CHONDRITE METEORITES [J].