Query : 2005A&A...444..673S

2005A&A...444..673S - Astronomy and Astrophysics, volume 444, 673-683 (2005/12-4)

The late merging phase of a galaxy cluster: XMM EPIC observations of A 3266.


Abstract (from CDS):

We present a mosaic of five XMM-Newton observations of the nearby (z=0.0594) merging galaxy cluster Abell 3266. We use the spectro-imaging capabilities of XMM-Newton to build precise (projected) temperature, entropy, pressure and Fe abundance maps. The temperature map exhibits a curved, large-scale hot region, associated with elevated entropy levels, very similar to that foreseen in numerical simulations. The pressure distribution is disturbed in the central region but is remarkably regular on large scales. The Fe abundance map indicates that metals are inhomogeneously distributed across the cluster. Using simple physical calculations and comparison with numerical simulations, we discuss in detail merging scenarios that can reconcile the observed gas density, temperature and entropy structure, and the galaxy density distribution.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: Abell 3266 - X-rays: galaxies: clusters - X-rays: general

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
1 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 407 0
2 ACO 1750 ClG 13 30 50.44 -01 51 27.1           ~ 173 2

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