Surface of Young Jupiter Family Comet 81P/Wild 2: View from the Stardust Spacecraft-Reference-Cited by-同舟云学术

Surface of Young Jupiter Family Comet 81P/Wild 2: View from the Stardust Spacecraft

Published:2004-06-18 Issue:5678 Volume:304 Page:1764-1769
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Brownlee Donald E.¹²³⁴⁵,Horz Friedrich¹²³⁴⁵,Newburn Ray L.¹²³⁴⁵,Zolensky Michael¹²³⁴⁵,Duxbury Thomas C.¹²³⁴⁵,Sandford Scott¹²³⁴⁵,Sekanina Zdenek¹²³⁴⁵,Tsou Peter¹²³⁴⁵,Hanner Martha S.¹²³⁴⁵,Clark Benton C.¹²³⁴⁵,Green Simon F.¹²³⁴⁵,Kissel Jochen¹²³⁴⁵

Affiliation:

1. Department of Astronomy, University of Washington, Seattle, WA 98195, USA.

2. National Aeronautics and Space Administration (NASA) Johnson Space Center, Houston, TX 77058, USA.

3. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109–8099, USA.

4. NASA Ames Research Center, Moffet Field, CA 94035–1000, USA.

5. University of Massachusetts, Amherst, MA 01003–9291, USA.

Abstract

Images taken by the Stardust mission during its flyby of 81P/Wild 2 show the comet to be a 5-kilometer oblate body covered with remarkable topographic features, including unusual circular features that appear to be impact craters. The presence of high-angle slopes shows that the surface is cohesive and self-supporting. The comet does not appear to be a rubble pile, and its rounded shape is not directly consistent with the comet being a fragment of a larger body. The surface is active and yet it retains ancient terrain. Wild 2 appears to be in the early stages of its degradation phase as a small volatile-rich body in the inner solar system.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference22 articles.

1. From the Kuiper Belt to Jupiter-Family Comets: The Spatial Distribution of Ecliptic Comets

2. Z. Sekanina, D. K. Yeomans, Astron. J.85, 2335 (1985).

3. Stardust Imaging Camera

4. T. C. Duxbury et al . in preparation.

5. The names given to features on Comet Wild 2 are informal and were chosen by the Stardust team. They are not approved by or under consideration for approval from the International Astronomical Union (IAU).

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