DARIS : a low-frequency distributed aperture array for radio astronomy in space

A.J. Boonstra, N. Saks, H. Falcke, M. Klein-Wolt, Marinus Jan Bentum, R.T. Rajan, Raj Rajan, M. Wijnholds, M. Arts, K. van 't Klooster, F. Beliën

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    The frequency band below 30 MHz is one of the last unexplored bands in radio astronomy. This band is well suited for studying the early cosmos at high hydrogen redshifts, the so-called dark ages, extragalactic surveys, (extra) solar planetary bursts, and high energy particle physics. In addition, space research such as space weather tomography, are also areas of scientific interest. Due to ionospheric scintillation (below 30MHz) and its opaqueness (below 15MHz), earth-bound radio astronomy observations in these bands are either severely limited in sensitivity and spatial resolution or entirely impossible. A radio telescope in space obviously would not be hampered by the Earth's ionosphere. In the past, several (limited) studies have been conducted to explore possibilities for such an array in space. These studies considered aperture synthesis arrays in space, at the back-side of the Moon, or a satellite constellation operating in a coherent mode.
    Original languageUndefined
    Title of host publicationSense of Contact 12
    Place of PublicationUtrecht
    Number of pages2
    ISBN (Print)not assigned
    Publication statusPublished - 8 Apr 2010
    Event12th Sensor Technology Conference Sense of Contact 2010 - Conferentiecentrum Woudschoten, Zeist, Netherlands
    Duration: 8 Apr 20108 Apr 2010
    Conference number: 12

    Publication series

    PublisherSTW Technology Foundation


    Workshop12th Sensor Technology Conference Sense of Contact 2010


    • IR-75298
    • METIS-275788
    • Radio astronomy
    • EWI-19105
    • phased array signal processing
    • low-frequency astronomy
    • correlator
    • Satellites

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