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Overview of Lutetia's surface composition

机译：Lutetia表面成分概述

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摘要

All available data regarding compositionally diagnostic measurements of asteroid (21) Lutetia are assembled. We review ground-based observations together with recent spacecraft mission (Rosetta, Herschel and Spitzer) measurements. The aim of this paper is to gather all the pieces of the Lutetia puzzle, in order to derive the most probable surface composition interpretation. During the flyby Rosetta observed only the northern hemisphere where OSIRIS imaging system found albedo variations of up to 30%. From our analyses of all the available data, taken at different aspect angles, variations on Lutetia's surface are inferred to be due to compositional and morphological differences (at macro and micro scales). We conclude that Lutetia has a chondritic surface, possibly composed of mixtures of "incompatible" types of materials: carbonaceous and enstatite chondrites. Finding these materials juxtaposed could be the consequence of large impacts that created the present surface.
机译：汇总了有关小行星（21）Lutetia的成分诊断测量的所有可用数据。我们回顾了地面观测以及最近的航天器飞行任务（Rosetta，Herschel和Spitzer）的测量结果。本文的目的是收集Lutetia难题的所有部分，以得出最可能的表面成分解释。在飞行过程中，罗塞塔（Rosetta）仅观察到北半球，在那里OSIRIS成像系统发现反照率变化高达30％。根据我们对所有可用数据的分析（从不同的角度角度拍摄），可以推断出Lutetia表面的变化是由于成分和形态上的差异（在宏观和微观上）。我们得出的结论是，Lutetia具有软骨状表面，可能由“不相容”类型的材料的混合物组成：碳质和顽辉长晶陨石。找到这些并列的材料可能是产生当前表面的巨大撞击的结果。

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  • 来源
    《Planetary and space science》 |2012年第1期|p.23-30|共8页
  • 作者

    MA Barucci; I.N. Belskaya; S. Fornasier; M. Fulchignoni; B.E. Clark; A. Coradini; F. Capaccioni; E. Dotto; M. Birlan; C. Leyrat; H. Sierks; N. Thomas; J.B. Vincent;

  • 作者单位

    LESIA-Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 Place Jules Janssen, 92195 Meudon, France;

    LESIA-Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 Place Jules Janssen, 92195 Meudon, France Institute of Astronomy, Kharkiv National University, 35 Sumska Street, 61022 Kharkiv, Ukraine;

    LESIA-Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 Place Jules Janssen, 92195 Meudon, France Universite Paris Diderot, Sorbonne Paris-Cite, 4 rue Elsa Morante, 75205 Paris, France;

    LESIA-Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 Place Jules Janssen, 92195 Meudon, France Universite Paris Diderot, Sorbonne Paris-Cite, 4 rue Elsa Morante, 75205 Paris, France;

    Department of Physics, Ithaca College, Ithaca, NY 14850, USA;

    Istituto di Fisica dello Spazio Interplanetario-INAF, Rome, Italy;

    Istituto di Astrofisica Spaziale e Fisica Cosmica-INAF, Rome, Italy;

    Osservatorio Astronomico di Roma-INAF, Rome, Italy;

    IMCCE, Observatoire de Paris, 77 Av. Denfert Rochereau, 75074 Paris, France;

    LESIA-Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 Place Jules Janssen, 92195 Meudon, France;

    Max-Planck-lnstitut fuer Sonnensystemforschung, Katlenburg-Lindau, Germany;

    LESIA-Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 Place Jules Janssen, 92195 Meudon, France;

    Max-Planck-lnstitut fuer Sonnensystemforschung, Katlenburg-Lindau, Germany;

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  • 正文语种 eng
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  • 关键词

    rosetta; lutetia; asteroids; composition; chondrites;

    机译：罗塞塔;黄体;小行星;组成;球粒陨石;

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