SIMBAD references

1997A&A...317..646S - Astronomy and Astrophysics, volume 317, 646-655 (1997/1-3)

ROSAT/HRI and ASCA observations of the most luminous X-ray cluster RX J1347.5-1145.


Abstract (from CDS):

We report on the X-ray properties of the exceptional X-ray cluster RX J1347.5-1145 at z=0.451. We confirm that it is with a luminosity LX(bol)=2x1046erg/s the most luminous X-ray cluster discovered to date. The mass of the cluster within 1.7Mpc is 9.8x1014M. A comparison of the central X-ray mass and the mass determined from a simple gravitational lens model shows a discrepancy of a factor of 2-3 with the X-ray mass being smaller. The temperature of the cluster is 9.3+1.1–1.0keV. We detect a strong FeK line corresponding to a metallicity of 0.33±0.10 in solar units, which is an unexpectedly high value for a distant and hot cluster. There are several hints that the cluster contains an extremely strong cooling flow. With the usual assumptions we derive formally a mass accretion rate of more than 3000M/yr indicating that this may be the largest cooling flow detected so far. To find these extreme properties in this distant cluster which can be taken as an indication of a well relaxed and old system is of high importance for the theory of formation and evolution of clusters.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: RX J1347.5-1145 - inter galactic medium - dark matter - X-rays: galaxies - cooling flows - cosmology: observations

Status at CDS:  

Simbad objects: 13

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