Split comets and the origin of crater chains on Ganymede and Callisto

  title={Split comets and the origin of crater chains on Ganymede and Callisto},
  author={H. Jay Melosh and Paul M. Schenk},
WHEN the Voyager 1 spacecraft flew through the jovian system in January 1979, it returned images of several prominent chains of impact craters on the surface of the moon Callisto (Fig. 1). These impressively straight chains, or catenae, are composed of between 4 and 25 craters, and are up to 620 km long. They were initially thought to be secondary craters produced by debris from a larger primary impact1, but detailed searches for source craters have been largely unsuccessful: a satisfactory… Expand
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Lunar and Planetary Institute, Center for Advanced Space Studies, Houston, TXAbstract. Chains of impact craters, or catenae, have beenidentified in Voyager images of Callisto and Ganymede.AlthoughExpand
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It is shown that catena-producing craters likely formed in the gravity regime, providing constraints on the ejecta velocity field and knowledge of source crater material properties, and for the first time across any planetary body, creates a novel way to probe planetary surface characteristics. Expand


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Numerical recipes in C++: the art of scientific computing, 2nd Edition (C++ ed., print. is corrected to software version 2.10)
F uther repruction, or ny coying of m acineredable fles (inluding his one) to ny srver om pter, is sictly proibited. Expand