AbstractWe present the first results from an XMM-Newton observation of RX J1347.5–1145 (Z=0.451), the most luminous X-ray cluster of galaxies currently known, with a luminosity LX=6.0±0.1×1045ergs−1 in the (2–10) keV energy band. The cluster has an overall temperature of kT=10.0±0.3 keV and is not isothermal: the temperature profile shows a decline in the outer regions and a drop in the centre, indicating the presence of a cooling core. The spectral analysis identifies a hot region at radii 50–200kpc to south-east (SE) of the main X-ray peak, at a position consistent with the subclump seen in the X-ray image. Excluding the data of the SE quadrant, the cluster appears relatively relaxed and we estimate a total mass within 1 Mpc of 1.0±0.2×1015M⊙.


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    Title :

    A first XMM-Newton look at the most X-ray-luminous galaxy cluster RX J1347.5–1145


    Contributors:

    Published in:

    Advances in Space Research ; 36 , 4 ; 613-617


    Publication date :

    2004-12-06


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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