|
CONSERT (COmet Nucleus Sounding Experiment by Radiowave Transmission) is a scientific experiment on board the European Space Agency's Rosetta mission, launched in 2004, which will provide information about the deep interior of the comet 67P/Churyumov-Gerasimenko upon the probe's rendezvous with the comet in 2014.〔(【引用サイトリンク】title=PHILAE )〕 The CONSERT radar will perform tomography of the nucleus by measuring electromagnetic wave propagation from the Philae lander and the Rosetta orbiter throughout the comet nucleus in order to determine its internal structures and to deduce information on its composition.〔 The related lander and orbiter electronics were provided by France and both antennas were constructed in Germany. The experiment was designed and built in France by Laboratoire de Planétologie de Grenoble (LPG now IPAG) and by Service d'Aéronomie in Paris (SA now LATMOS), in Germany by Max Planck Institut of Aeronomy (MPAE and now MPS) in Lindau/Katlenburg. The Principal Investigator of CONSERT is Dr. Wlodek Kofman (IPAG), Director of Research at CNRS. == Scientific objectives == The scientific objectives of the CONSERT experiment are the determination of the main dielectric properties and, through modelling, to set constraints on the cometary composition (materials, porosity, etc.), to detect large–size structures (several tens of meters) and stratification, to detect and characterise small–scale irregularities within the nucleus. A detailed analysis of the radio–waves which have passed through all or parts of the nucleus will put real constraints on the materials and on inhomogeneities and will help to identify blocks, gaps or voids. From this information, scientists will attempt to answer some fundamental questions of cometary physics. How is the nucleus built up? Is it homogeneous, layered or composed of accreted blocks (cometesimals, boulders)? What is the nature of the refractory component? Is it chondritic as generally expected or does it contain inclusions of unexpected electromagnetic properties? In more detail, the purpose of CONSERT experiment is to measure the following quantities:
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CONSERT」の詳細全文を読む スポンサード リンク
|