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Astron. Astrophys. 351, L45-L48 (1999)

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Letter to the Editor

Spatially resolved spectroscopy of the cooling flow cluster PKS 0745-191 with BeppoSAX

Sabrina De Grandi 1 and Silvano Molendi 2

1 Osservatorio Astronomico di Brera, via Bianchi 46, 23807 Merate (LC), Italy
2 Istituto di Fisica Cosmica, CNR, via Bassini 15, 20133 Milano, Italy

Received 14 September 1999 / Accepted 22 October 1999


We present results from a BeppoSAX observation of the cooling flow cluster PKS 0745-191 (z[FORMULA]0.1028). By performing spatially resolved spectroscopy, we find that the projected temperature profile is consistent with being constant. We can rule out, at more than the 99[FORMULA] confidence level, a temperature decrement of a factor 2 when going from the cluster core out to 1.2 Mpc. On the contrary, the projected metal abundance is found to drop from 0.4 (solar units) within the cluster core to 0.2 (solar units) at radii larger than 300 kpc, this decrement is significant at more than the 99.9[FORMULA] confidence level.

Key words: X-rays: galaxies – galaxies: clusters: individual: PKS 0745-191

Send offprint requests to: degrandi@merate.mi.astro.it

© European Southern Observatory (ESO) 1999

Online publication: November 16, 1999