Daris, a low-frequency distributed aperture array for radio astronomy in space

A.J. Boonstra, N. Saks, Marinus Jan Bentum, K. van 't Klooster, H. Falcke

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    Abstract

    DARIS (Distributed Aperture Array for Radio Astronomy in Space) is a radio astronomy space mission concept aimed at observing the low-frequency radio sky in the range 1-10 MHz. Because of the Earth's ionospheric disturbances and opaqueness, this frequency range can only be observed from space. The astronomical science cases include sensitive extragalactic surveys, radio transients such as Jupiter-like burst and Crab-like pulses, and coronal mass ejection tracking. The focus of the DARIS concept study is on feasibility aspects of a distributed aperture synthesis array in space, consisting of small satellite nodes and a mother-ship. The study selected suitable science cases, antenna concepts, communications, signal processing, orbital design, and mission analysis. With current-day technologies a satellite cluster can be built consisting of at least eight satellite nodes and a mother-ship, which could be launched with a Soyuz rocket from Kourou. Such a satellite cluster would open up the last unexplored frequency range for astronomy.
    Original languageUndefined
    Title of host publication61th International Astronautica Congress (IAC 2010)
    Place of PublicationPrague
    PublisherIAC
    Pages1-7
    Number of pages7
    ISBN (Print)1995-6258
    Publication statusPublished - 28 Sep 2010
    Event61st International Astronautical Congress, IAC 2010 - Prague, Czech Republic
    Duration: 27 Sep 20101 Oct 2010
    Conference number: 61

    Publication series

    Name
    PublisherIAC
    ISSN (Print)1995-6258

    Conference

    Conference61st International Astronautical Congress, IAC 2010
    Abbreviated titleIAC
    CountryCzech Republic
    CityPrague
    Period27/09/101/10/10

    Keywords

    • METIS-276204
    • EWI-19035
    • IR-75271

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