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    The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65

    75121.pdf (517.6Kb)
    Access Status
    Open access
    Authors
    Van Weeren, R.
    Intema, Hubertus
    Lal, D.
    Bonafede, A.
    Jones, C.
    Forman, W.
    Röttgering, H.
    Brüggen, M.
    Stroe, A.
    Hoeft, M.
    Nuza, S.
    De Gasperin, F.
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Van Weeren, R. and Intema, H. and Lal, D. and Bonafede, A. and Jones, C. and Forman, W. and Röttgering, H. et al. 2014. The discovery of a radio halo in PLCK G147.3-16.6 at Z = 0.65. Astrophysical Journal Letters. 781 (2): Article ID L32.
    Source Title
    Astrophysical Journal Letters
    DOI
    10.1088/2041-8205/781/2/L32
    ISSN
    2041-8205
    Remarks

    This is an author-created, un-copy edited version of an article accepted for publication in Astrophysical Journal. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/2041-8205/781/2/L32.

    URI
    http://hdl.handle.net/20.500.11937/74836
    Collection
    • Curtin Research Publications
    Abstract

    Recent X-ray and Sunyaev-Zel'dovich (SZ) observations have dramatically increased the number of known distant galaxy clusters. In some merging, low-redshift (z < 0.4) clusters, centrally located, diffuse, extended radio emission (radio halos) has been found. Using the Giant Metrewave Radio Telescope (GMRT), we report the detection of diffuse radio emission in the binary-merging cluster PLCK G147.3-16.6 located at z = 0.65. We classify the emission as a giant radio halo due to its large physical extent of about 0.9 Mpc and its low-surface brightness. We measure an integrated flux density of 7.3 ± 1.1 mJy at 610 MHz for the radio halo, resulting in a 1.4 GHz radio power of 5.1 × 1024 W Hz-1. The radio halo power is consistent with that expected from the known correlation between X-ray luminosity or the cluster integrated SZ signal and radio power. Our observations also suggest that more of these distant radio halos could be discovered with the GMRT.

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