2002A&A...382..804B


Query : 2002A&A...382..804B

2002A&A...382..804B - Astronomy and Astrophysics, volume 382, 804-820 (2002/2-2)

The new emerging model for the structure of cooling cores in clusters of galaxies.

BOEHRINGER H., MATSUSHITA K., CHURAZOV E., IKEBE Y. and CHEN Y.

Abstract (from CDS):

New X-ray observations with XMM-Newton show a lack of spectral evidence for large amounts of cooling and condensing gas in the centers of galaxy clusters believed to harbour strong cooling flows. This paper re-explores the cooling flow scenario in the light of the new observations. We explore the diagnostics of the temperature structure of cooling cores with XMM-spectroscopy, tests for intracluster X-ray absorption towards central AGN, the effect of metal abundance inhomogeneities, and the implications of high resolution images in the centers of clusters. We find no evidence of intrinsic absorption in the center of the cooling flows of M 87 and the Perseus cluster. We further consider the effect of cluster rotation in cooling flow regions in the frame of cosmic structure evolution models. Also, the heating of the core regions of clusters by jets from a central AGN is reconsidered. We find that the power of the AGN jets as estimated by their interaction effects with the intracluster medium in several examples is more then sufficient to heat the cooling flows and to reduce the mass deposition rates. We explore in more detail which requirements such a heating model has to fulfill to be consistent with all observations, point out the way such a model could be constructed, and argue that such model building seems to be successful. In summary, it is argued that most observational evidence points towards much lower mass deposition rates than previously inferred in the central region of clusters thought to contain strong cooling flows.

Abstract Copyright:

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

CDS comments: in ref list BOHRINGER H. 1989MNRAS.237.1147B instead of MNRAS.215.147, BUOTE 1994ApJ...427...86B instead of ApJ.427.96 , CANIZARES 1982ApJ...262...33C instead of ApJ.262L.32

Simbad objects: 11

goto Full paper

goto View the references in ADS

Number of rows : 11
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ACO 133 ClG 01 02 39.0 -21 57 15           ~ 350 1
2 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2093 1
3 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 3766 3
4 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 670 2
5 NAME Hya A LIN 09 18 05.6783347248 -12 05 43.634531472   14.38 14.8     ~ 957 1
6 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6644 3
7 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1201 0
8 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 655 1
9 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 700 1
10 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1128 1
11 ACO 2626 ClG 23 36 31.0 +21 09 36           ~ 226 0

To bookmark this query, right click on this link: simbad:objects in 2002A&A...382..804B and select 'bookmark this link' or equivalent in the popup menu


2022.05.21-11:35:35

© Université de Strasbourg/CNRS

    • Contact