RADAR IMAGES OF ASTEROID 1989-PB

被引：66
作者：
OSTRO, SJ
CHANDLER, JF
HINE, AA
ROSEMA, KD
SHAPIRO, II
YEOMANS, DK
机构：
[1] NATL ASTRON & IONOSPHERE CTR,ARECIBO,PR 00613
[2] HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138
来源：
SCIENCE | 1990年 / 248卷 / 4962期
关键词：
D O I：
10.1126/science.248.4962.1523
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：
Radar observations of the near-Earth asteroid 1989 PB, made shortly after its optical discovery, yield a sequence of delay-Doppler images that reveal it to consist of two distinct lobes that appear to be in contact. It seems likely that the two lobes once were separate and that they collided to produce the current "contact-binary" configuration.
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页码：1523 / 1528
页数：6
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