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⊙.
A first XMM-Newton look at the most X-ray-luminous galaxy cluster RX J1347.5–1145
Advances in Space Research ; 36 , 4 ; 613-617
2004-12-06
5 pages
Article (Journal)
Electronic Resource
English
A first XMM-Newton look at the most X-ray-luminous galaxy cluster RX J1347.5#82111145
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