ROSAT/HRI and ASCA observations of the most luminous X-ray cluster RXJ1347.5-1145

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dc.creatorSchindler, S.
dc.creatorHattori, M.
dc.creatorNeumann, D. M.
dc.creatorBöhringer, H.
dc.date1996-03-11
dc.date.accessioned2026-07-07T02:20:59Z
dc.date.available2026-07-07T02:20:59Z
dc.descriptionWe report on the X-ray properties of the exceptional X-ray cluster RXJ1347.5-1145 at z=0.451. We confirm that it is with a luminosity $L_X(bol)=2\times 10^{46}$ erg/s the most luminous X-ray cluster discovered to date. The mass of the cluster within 1.7 Mpc is $9.8%\pm1.1\times 10^{14} \msol$. 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 $9.3^{+1.1}_{-1.0}$~keV. We detect a strong FeK line corresponding to a metallicity of $0.33\pm0.10$ 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 3000 $\msol$/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.
dc.description11 pages, postscript, including 6 figures, submitted to A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/9603037
dc.identifierhttp://arxiv.org/abs/astro-ph/9603037
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10396
dc.subjectAstrophysics
dc.titleROSAT/HRI and ASCA observations of the most luminous X-ray cluster RXJ1347.5-1145
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