2017MNRAS.467.1449J


Query : 2017MNRAS.467.1449J

2017MNRAS.467.1449J - Mon. Not. R. Astron. Soc., 467, 1449-1477 (2017/May-2)

Cosmic ray heating in cool core clusters - I. Diversity of steady state solutions.

JACOB S. and PFROMMER C.

Abstract (from CDS):

The absence of large cooling flows in cool core clusters appears to require self-regulated energy feedback by active galactic nuclei but the exact heating mechanism has not yet been identified. Here, we analyse whether a combination of cosmic ray (CR) heating and thermal conduction can offset radiative cooling. To this end, we compile a large sample of 39 cool core clusters and determine steady state solutions of the hydrodynamic equations that are coupled to the CR energy equation. We find solutions that match the observed density and temperature profiles for all our clusters well. Radiative cooling is balanced by CR heating in the cluster centres and by thermal conduction on larger scales, thus demonstrating the relevance of both heating mechanisms. Our mass deposition rates vary by three orders of magnitude and are linearly correlated to the observed star formation rates. Clusters with large mass deposition rates show larger cooling radii and require a larger radial extent of the CR injection function. Interestingly, our sample shows a continuous sequence in cooling properties: clusters hosting radio mini haloes are characterized by the largest cooling radii, star formation and mass deposition rates in our sample and thus signal the presence of a higher cooling activity. The steady state solutions support the structural differences between clusters hosting a radio mini halo and those that do not.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): conduction - radiation mechanisms: non-thermal - cosmic rays - galaxies: active - galaxies: clusters: general - galaxies: clusters: general

Simbad objects: 39

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Number of rows : 39
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 856 0
2 ACO 133 ClG 01 02 39.0 -21 57 15           ~ 355 1
3 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 682 1
4 ACO 383 ClG 02 48 03.30 -03 31 43.4           ~ 345 0
5 2A 0251+413 ClG 02 54 32.2 +41 35 10           ~ 307 1
6 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 301 1
7 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2149 1
8 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 367 1
9 ACO 478 ClG 04 13 20.7 +10 28 35           ~ 488 0
10 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 678 2
11 ACO 539 ClG 05 16 35.1 +06 27 14           ~ 247 2
12 ClG 0745-19 ClG 07 47 31.3 -19 17 40           ~ 368 0
13 ACO 780 ClG 09 18 30 -12 15.7           ~ 446 0
14 ClG J0947+7623 ClG 09 47 12.9 +76 23 13           ~ 141 1
15 ACO 907 ClG 09 58 21.84 -11 03 47.5           ~ 125 0
16 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 274 0
17 NAME NGC 4073 Group GrG 12 04 21.7 +01 50 19     13.53     ~ 256 0
18 NAME Virgo A Cluster ClG 12 30.8 +12 23           ~ 130 0
19 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 1034 2
20 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 354 1
21 ClG J1347-1145 ClG 13 47 33.5 -11 45 42           ~ 523 0
22 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1220 0
23 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 669 1
24 ACO 3581 ClG 14 07 29.8 -27 01 04           ~ 178 3
25 ACO 1991 ClG 14 54 30.2 +18 37 51           ~ 318 1
26 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 282 0
27 ClG J1504-0248 ClG 15 04 07.4 -02 48 15           ~ 167 0
28 ACO 2029 ClG 15 10 58.7 +05 45 42           ~ 909 0
29 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 709 1
30 BAX 230.4583+07.7089 ClG 15 21 50.7 +07 42 18     15.13     ~ 302 0
31 ClG J1532+3021 ClG 15 32 53.8 +30 21 00           ~ 106 0
32 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1143 1
33 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 423 0
34 NAME Oph Cluster ClG 17 12 24.7 -23 21 01           ~ 262 0
35 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 233 0
36 ZwCl 1742+3306 ClG 17 44 16.2753 +32 59 55.115           ~ 70 0
37 ACO 2390 ClG 21 53 34.6 +17 40 11           ~ 666 2
38 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 526 0
39 ACO 4059 ClG 23 56 40.7 -34 40 18           ~ 373 1

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2023.01.30-05:25:01

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