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E-Type Asteroid (2867) Steins as Imaged by OSIRIS on Board Rosetta

Keller, H. U. (author)
Barbieri, C. (author)
Koschny, D. (author)
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Lamy, P. (author)
Rickman, Hans (author)
Uppsala universitet,Teoretisk astrofysik
Rodrigo, R. (author)
Sierks, H. (author)
A'Hearn, M. F. (author)
Angrilli, F. (author)
Barucci, M. A. (author)
Bertaux, J. -L (author)
Cremonese, G. (author)
Da Deppo, V. (author)
Davidsson, Björn (author)
Uppsala universitet,Teoretisk astrofysik
De Cecco, M. (author)
Debei, S. (author)
Fornasier, S. (author)
Fulle, M. (author)
Groussin, O. (author)
Gutierrez, P. J. (author)
Hviid, S. F. (author)
Ip, W. -H (author)
Jorda, L. (author)
Knollenberg, J. (author)
Kramm, J. R. (author)
Kuehrt, E. (author)
Kueppers, M. (author)
Lara, L. -M (author)
Lazzarin, M. (author)
Lopez Moreno, J. (author)
Marzari, F. (author)
Michalik, H. (author)
Naletto, G. (author)
Sabau, L. (author)
Thomas, N. (author)
Wenzel, K. -P (author)
Bertini, I. (author)
Besse, S. (author)
Ferri, F. (author)
Kaasalainen, M. (author)
Lowry, S. (author)
Marchi, S. (author)
Mottola, S. (author)
Sabolo, W. (author)
Schroeder, S. E. (author)
Spjuth, S. (author)
Vernazza, P. (author)
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 (creator_code:org_t)
American Association for the Advancement of Science (AAAS), 2010
2010
English.
In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 327:5962, s. 190-193
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • The European Space Agency's Rosetta mission encountered the main-belt asteroid (2867) Steins while on its way to rendezvous with comet 67P/Churyumov-Gerasimenko. Images taken with the OSIRIS (optical, spectroscopic, and infrared remote imaging system) cameras on board Rosetta show that Steins is an oblate body with an effective spherical diameter of 5.3 kilometers. Its surface does not show color variations. The morphology of Steins is dominated by linear faults and a large 2.1-kilometer-diameter crater near its south pole. Crater counts reveal a distinct lack of small craters. Steins is not solid rock but a rubble pile and has a conical appearance that is probably the result of reshaping due to Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) spin-up. The OSIRIS images constitute direct evidence for the YORP effect on a main-belt asteroid.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Astronomy and astrophysics
Astronomi och astrofysik

Publication and Content Type

ref (subject category)
art (subject category)

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