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    LOFAR: The LOw-Frequency ARray

    192995_96149_vanHaarlem2013_aa20873-12.pdf (27.97Mb)
    Access Status
    Open access
    Authors
    van Haarlem, M.
    Wise, M.
    Gunst, A.
    Miller-Jones, James
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    van Haarlem, M. P. and Wise, M. W. and Gunst, A. W. and Heald, G. and McKean, J. P. and Hessels, J. W. T. and de Bruyn, A. G. et al. 2013. LOFAR: The LOw-Frequency ARray. Astronomy and Astrophysics. 556: pp. A2:1-A2:53.
    Source Title
    Astronomy and Astrophysics
    DOI
    10.1051/0004-6361/201220873
    ISSN
    0004-6361
    Remarks

    © ESO, 2013

    URI
    http://hdl.handle.net/20.500.11937/16781
    Collection
    • Curtin Research Publications
    Abstract

    LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across Europe. Utilizing a novel phased-array design, LOFAR covers the largely unexplored low-frequency range from 10-240 MHz and provides a number of unique observing capabilities. Spreading out from a core located near the village of Exloo in the northeast of the Netherlands, a total of 40 LOFAR stations are nearing completion. A further five stations have been deployed throughout Germany, and one station has been built in each of France, Sweden, and the UK. Digital beam-forming techniques make the LOFAR system agile and allow for rapid repointing of the telescope as well as the potential for multiple simultaneous observations. With its dense core array and long interferometric baselines, LOFAR achieves unparalleled sensitivity and angular resolution in the low-frequency radio regime. The LOFAR facilities are jointly operated by the International LOFAR Telescope (ILT) foundation, as an observatory open to the global astronomical community. LOFAR is one of the first radio observatories to feature automated processing pipelines to deliver fully calibrated science products to its user community. LOFAR's new capabilities, techniques and modus operandi make it an important pathfinder for the Square Kilometre Array (SKA). We give an overview of the LOFAR instrument, its major hardware and software components, and the core science objectives that have driven its design. In addition, we present a selection of new results from the commissioning phase of this new radio observatory.

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