Other
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991sci...252.1399o&link_type=abstract
Science (ISSN 0036-8075), vol. 252, June 7, 1991, p. 1399-1404. NASA-supported research.
Other
54
Asteroids, Chemical Composition, Iron Meteorites, Radar Detection, Carbonaceous Chondrites, Iron Compounds, Nickel Compounds, Orbital Elements, Radar Imagery
Scientific paper
Echoes from the near-earth object 1986 DA show it to be significantly more reflective than other radar-detected asteroids. This result supports the hypothesis that 1986 DA is a piece of NiFe metal derived from the interior of a much larger object that melted, differentiated, cooled, and subsequently was disrupted in a catastrophic collision. This 2-kilometer asteroid, which appears smooth at centimeter to meter scales but extremely irregular at 10- to 100-meter scales, might be (or have been a part of) the parent body of some iron meteorites.
Campbell Don B.
Chandler John F.
Hine Alice A.
Hudson Raymond Scott
Ostro Steven J.
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