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首页> 外文期刊>Planetary and space science >The geomorphology of (21) Lutetia: Results from the OSIRIS imaging system onboard ESA's Rosetta spacecraft
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The geomorphology of (21) Lutetia: Results from the OSIRIS imaging system onboard ESA's Rosetta spacecraft

机译：（21）Lutetia的地貌：ESA的Rosetta航天器上的OSIRIS成像系统的结果

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摘要

The surface of (21) Lutetia is highly complex with significant interactions between ancient and more recent structures. This work attempts to summarize the surface geomorphology observed using the high resolution images from OSIRIS, the imaging system onboard the European Space Agency's Rosetta spacecraft. A wide range of surface morphologies are seen including heavily cratered terrain, extensive sets of lineaments, young impact craters, and a ridge, the height of which is more than l/5th of the mean radius of the body. Very young and very old terrains (as inferred from crater densities) are seen in close proximity. The longest continuous lineament is over 80 km long. The lineaments show regional-dependent organization and structure. Several categories of lineament can be described. Lineaments radial to impact craters as seen on other asteroidal bodies are mostly absent. Although the lineaments may be of seismic origin (and possibly the result of several impact-induced events), impacts producing recent large craters place constraints on seismic phenomena. In particular, stronger attenuation of shocks than seen on other asteroidal bodies seems to be required. Inhomogeneous energy transport, possibly matching observed inhomogeneous ejecta deposition may offer explanations for some of the observed phenomena. Some impact craters show unusual forms, which are probably the result of impact into a surface with relief comparable to the resultant crater diameter and/or oblique impact. There is evidence that re-surfacing through landslides has occurred at several places on the object.
机译：（21）Lutetia的表面非常复杂，在古代结构和较新的结构之间具有显着的相互作用。这项工作试图总结使用OSIRIS（欧洲航天局罗塞塔号航天器上的成像系统）的高分辨率图像观测到的表面地貌。可以看到各种各样的表面形态，包括崎不平的地形，大量的线条，年轻的撞击坑和山脊，其高度超过人体平均半径的1/5。可以很近地看到非常年轻和非常古老的地形（从陨石坑密度推断）。最长的连续线条超过80公里。线条显示了取决于区域的组织和结构。可以描述几种类别的线条。在其他小行星体上看到的撞击陨石坑呈放射状的线状构造几乎不存在。尽管谱系可能是地震起源的（可能是几次撞击诱发事件的结果），但最近产生的大型陨石坑的撞击限制了地震现象。特别是，似乎需要比其他小行星上更强的冲击衰减。不均匀的能量传输，可能与观察到的不均匀喷射沉积相匹配，可以为某些观察到的现象提供解释。一些冲击坑显示出不寻常的形式，这很可能是冲击到具有浮雕的表面的结果，可与最终的坑直径和/或倾斜冲击相比。有证据表明，在该物体的多个位置都发生了滑坡的重铺。

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  • 来源
    《Planetary and space science》 |2012年第1期|p.96-124|共29页
  • 作者

    N. Thomas; C. Barbieri; H.U. Keller; P. Lamy; H. Rickman; R. Rodrigo; H. Sierks; K.P. Wenzel; G. Cremonese; L Jorda; M. Kueppers; S. Marchi; F. Marzari; M. Massironi; F. Preusker; F. Scholten; K. Stephan; M.A. Barucci; S. Besse; M.R. El-Maarry; S. Fornasier; O. Groussin; S.F. Hviid; D. Koschny; E. Kuehrt; E. Martellato; R. Moissl; C Snodgrass; C. Tubiana; J.-B. Vincent;

  • 作者单位

    Physikalisches Institut, Sidlerstrasse 5, University of Bern, CH-3012 Bern, Switzerland;

    University o/Padova, Department of Astronomy, Vicolo dell'Osservatorio 3, 35122 Padova, Italy CISAS, 'G.Colombo', Universita di Padova, via Venezia 15, 35131 Padova, Italy;

    Institut fuer Geophysik u. Extraterrestrische Physik, Technical University of Braunschweig, Germany;

    Laboratoire d'Astrophysique de Marseille, 38 rue Frederic Joliot-Curie, 13388 Marseille, France;

    Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden PAS Space Research Center, Bartycka 18A, 00-716 Warsaw, Poland;

    Instituto de Astrofisica de Andalucia-CSIC, 18080 Granada, Spain;

    Max-Planck-lnstitut fuer Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katienburg-Lindau, Germany;

    Research and Scientific Support Department, European Space Agency, 2201 Noordwijk, The Netherlands;

    INAF-Osservatorio Astronomico di Padova, Italy;

    Laboratoire d'Astrophysique de Marseille, 38 rue Frederic Joliot-Curie, 13388 Marseille, France;

    Universite Paris Diderot, Sorbonne Paris Cite', 4 rue Elsa Morante, 75205 Paris, France;

    Universite de Nice-Sophia Antipolis, Observatoire de la Cote d'Azur, CNRS, 06304 Nice, France;

    Department of Physics, University of Padova, Italy;

    Universita di Padova, Dipartimento di Geoscienze, Padova, Italy;

    DLR, Institute of Planetary Research, Rutherfordstrasse 4, Berlin-Adlershof, Germany;

    DLR, Institute of Planetary Research, Rutherfordstrasse 4, Berlin-Adlershof, Germany;

    DLR, Institute of Planetary Research, Rutherfordstrasse 4, Berlin-Adlershof, Germany;

    Observatoire Paris-Site de Meudon, LESIA, 5 PI Jules Janssen, FR 92195 Meudon Cedex, France;

    Department of Astronomy, University of Maryland, MD 20742-2421, USA;

    Physikalisches Institut, Sidlerstrasse 5, University of Bern, CH-3012 Bern, Switzerland;

    Observatoire Paris-Site de Meudon, LESIA, 5 PI Jules Janssen, FR 92195 Meudon Cedex, France Universite Paris Diderot, Sorbonne Paris Cite', 4 rue Elsa Morante, 75205 Paris, France;

    Laboratoire d'Astrophysique de Marseille, 38 rue Frederic Joliot-Curie, 13388 Marseille, France;

    Max-Planck-lnstitut fuer Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katienburg-Lindau, Germany;

    Research and Scientific Support Department, European Space Agency, 2201 Noordwijk, The Netherlands;

    DLR, Institute of Planetary Research, Rutherfordstrasse 4, Berlin-Adlershof, Germany;

    INAF-Osservatorio Astronomico di Padova, Italy;

    European Space Agency-European Space Astronomy Centre, PO Box 78, 28691 Villanueva de la Canada, Spain;

    Max-Planck-lnstitut fuer Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katienburg-Lindau, Germany;

    Max-Planck-lnstitut fuer Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katienburg-Lindau, Germany;

    Max-Planck-lnstitut fuer Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katienburg-Lindau, Germany;

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  • 正文语种 eng
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  • 关键词

    rosetta; asteroid; lutetia; imaging; geomorphology; data analysis;

    机译：罗塞塔;小行星;黄体;成像;地貌;数据分析;

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