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    Predictions for the detection of Earth and Mars Trojan asteroids by the Gaia satellite

    194616_101010_Detection_of_Earth_and_Mars_Trojan.pdf (2.180Mb)
    Access Status
    Open access
    Authors
    Todd, M.
    Tanga, P.
    Coward, D.
    Zadnik, Marjan
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Todd, M. and Tanga, P. and Coward, D.M. and Zadnik, M.G. 2014. Predictions for the detection of Earth and Mars Trojan asteroids by the Gaia satellite. Monthly Notices of the Royal Astronomical Society. 437 (4): pp. 4019-4026.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/mnras/stt2223
    ISSN
    0035-8711
    Remarks

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. ©2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/30744
    Collection
    • Curtin Research Publications
    Abstract

    The European Space Agency Gaia satellite, planned for launch in late 2013, will perform systematic astrometric observations of the whole sky over a five year period. During this mission many thousands of Solar System Objects down to magnitude V =20 will be observed including Near-Earth Asteroids and objects at Solar elongations a slow as 45 °, which are difficult to observe with ground-based telescopes. We simulated the detection of Trojan asteroids in the orbits of Earth and Mars by Gaia. We find that Gaia will not detect the Earth Trojan 2010 TK7 although it will detect any Earth Trojans with diameters larger than 600 m. We also find that Gaia will detect the currently known Mars Trojans and could discover more than 100 new Mars Trojans as small as 400 m in diameter. The results of the Gaia mission will test the predictions about the Mars Trojan asteroid population and lead to greater understanding about the evolution of the Solar System.

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