RADAR IMAGES OF ASTEROID 1989-PB

被引：65

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.

引用

页码：1523 / 1528

页数：6

共 25 条

[1] VENUS GLOBAL RADAR REFLECTIVITY AND CORRELATIONS WITH ELEVATION [J].

GARVIN, JB ;

HEAD, JW ;

PETTENGILL, GH ;

ZISK, SH .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1985, 90 (NB8) :6859-6871

[2] RADAR OBSERVATIONS OF COMET IRAS-ARAKI-ALCOCK 1983D [J].

HARMON, JK ;

CAMPBELL, DB ;

HINE, AA ;

SHAPIRO, II ;

MARSDEN, BG .

ASTROPHYSICAL JOURNAL, 1989, 338 (02) :1071-1093

[3]

Harris A., COMMUNICATION

[4]

HARTMANN WK, 1979, ASTEROIDS, P466

[5]

HELIN EF, 1989, IAU4831 CIRC

[6]

MARSDEN BG, 1979, ASTEROIDS, P77

[7]

MCFADDEN LA, 1989, ASTEROIDS, V2, P442

[8]

Ostro S.J., 1989, ASTEROIDS, P192

[9] THE SHAPE OF EROS [J].

OSTRO, SJ ;

ROSEMA, KD ;

JURGENS, RF .

ICARUS, 1990, 84 (02) :334-351

[10] ASTEROID SHAPES FROM RADAR ECHO SPECTRA - A NEW THEORETICAL APPROACH [J].

OSTRO, SJ ;

CONNELLY, R ;

BELKORA, L .

ICARUS, 1988, 73 (01) :15-24

← 1 2 3 →