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    The effect of the ionosphere on astronomical observations below 100 MHz

    Access Status
    Fulltext not available
    Authors
    De Gasperin, F.
    Mevius, M.
    Intema, Hubertus
    Date
    2017
    Type
    Conference Paper
    
    Metadata
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    Citation
    De Gasperin, F. and Mevius, M. and Intema, H. 2017. The effect of the ionosphere on astronomical observations below 100 MHz, pp. 1-4.
    Source Title
    2017 32nd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2017
    DOI
    10.23919/URSIGASS.2017.8105011
    ISBN
    9789082598704
    URI
    http://hdl.handle.net/20.500.11937/74884
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 URSI. We derive the expected systematic error induced by the ionosphere on radio astronomical observations at low frequencies. We compare our predictions with data from the Low Frequency Array (LOFAR). We show that the systematic errors on the phases of the instrument can be described as a sum of four effects (clock, ionosphere 1st, 2nd, and 3rd order). We show that the ionosphere corrupts also the recorded data amplitude through scintillations. Finally, we report values of the ionosphere structure function in line with the literature.

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