Volume 427, Number 1, November III 2004
|Page(s)||L9 - L12|
|Published online||25 October 2004|
Letter to the Editor
XMM-Newton observation of the most X-ray-luminous galaxy cluster RX J1347.5-1145
Institut für Astrophysik, Leopold-Franzens Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria e-mail: firstname.lastname@example.org
Accepted: 25 September 2004
We report on an XMM-Newton observation of RX J1347.5-1145 (), the most luminous X-ray cluster of galaxies currently known, with a luminosity erg/s in the [2–10] keV energy band. We present the first temperature map of this cluster, which shows a complex structure. It identifies the cool core and a hot region at radii 50–200 kpc to south-east of the main X-ray peak, at a position consistent with the subclump seen in the X-ray image. This structure is probably an indication of a submerger event. Excluding the data of the south-east quadrant, the cluster appears relatively relaxed and we estimate a total mass within 1.7 Mpc of . We find that the overall temperature of the cluster is keV. The temperature profile shows a decline in the outer regions and a drop in the centre, indicating the presence of a cooling core which can be modelled by a cooling flow model with a minimum temperature ~2 keV and a very high mass accretion rate, yr. We compare our results with previous observations from ROSAT, ASCA and Chandra.
Key words: galaxies: clusters: particular: RX J1347.5-1145 / X-ray: galaxies: clusters / cooling flows
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.