2004A&A...426..387S


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.27CET19:42:33

2004A&A...426..387S - Astronomy and Astrophysics, volume 426, 387-397 (2004/11-1)

Probing turbulence in the Coma galaxy cluster.

SCHUECKER P., FINOGUENOV A., MINIATI F., BOEHRINGER H. and BRIEL U.G.

Abstract (from CDS):

Spatially-resolved gas pressure maps of the Coma galaxy cluster are obtained from a mosaic of XMM-Newton observations in the scale range between a resolution of 20kpc and an extent of 2.8Mpc. A Fourier analysis of the data reveals the presence of a scale-invariant pressure fluctuation spectrum in the range between 40 and 90kpc and is found to be well described by a projected Kolmogorov/Oboukhov-type turbulence spectrum. Deprojection and integration of the spectrum yields the lower limit of ∼10 percent of the total intracluster medium pressure in turbulent form. The results also provide observational constraints on the viscosity of the gas.

Abstract Copyright:

Journal keyword(s): X-rays: galaxies: clusters - galaxies: clusters: general - cosmology: theory - turbulence

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3497 3
2 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5727 0
3 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4151 2

    Equat.    Gal    SGal    Ecl

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2020.02.27-19:42:33

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