2010A&A...510A..83R


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST17:56:47

2010A&A...510A..83R - Astronomy and Astrophysics, volume 510, A83-83 (2010/2-1)

Cool core remnants in galaxy clusters.

ROSSETTI M. and MOLENDI S.

Abstract (from CDS):

X ray clusters are conventionally divided into two classes: ``cool core'' (CC) and ``non-cool core'' (NCC) objects, on the basis of the observational properties of their central regions. Recent results have shown that the cluster population is bimodal. We want to understand whether the observed distribution of clusters is due to a primordial division into two distinct classes or rather to differences in the way these systems evolve across cosmic time. We systematically search the ICM of NCC clusters in a subsample of the B55 flux limited sample of clusters for regions which have some characteristics typical of cool cores, namely low entropy gas and high metal abundance. We find that most NCC clusters in our sample host regions reminiscent of CC, i.e. characterized by relative low entropy gas (albeit not as low as in CC systems) and a metal abundance excess. We have dubbed these structures ``cool core remnants'', since we interpret them as the remains of a cool core after a heating event (AGN giant outbursts in a few cases and more commonly mergers). We infer that most NCC clusters have undergone a cool core phase during their life. The fact that most cool core remnants are found in dynamically active objects provides strong support to scenarios where cluster core properties are not fixed ``ab initio'' but evolve across cosmic time.

Abstract Copyright:

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

Simbad objects: 50

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Number of rows : 50

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 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 792 0
2 ACO 119 ClG 00 56 16.8 -01 15 00           ~ 519 2
3 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 348 0
4 ACO 401 ClG 02 58 56.9 +13 34 56           ~ 520 0
5 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 290 1
6 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 349 1
7 ACO 3158 ClG 03 42 39.6 -53 37 50           ~ 272 0
8 ACO 478 ClG 04 13 20.7 +10 28 35           ~ 470 0
9 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 372 0
10 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 663 2
11 ACO 3391 ClG 06 26 15.4 -53 40 52           ~ 170 1
12 ACO 576 ClG 07 21 24.1 +55 44 20           ~ 284 1
13 2MASX J07473129-1917403 BiC 07 47 31.296 -19 17 40.34   19.60       ~ 393 1
14 ClG 0745-19 ClG 07 47 31.3 -19 17 40           ~ 364 0
15 ACO 644 ClG 08 17 24.5 -07 30 46           ~ 202 0
16 2MASX J09083238-0937470 BiC 09 08 32.388 -09 37 47.06   14.32   13.32   ~ 37 2
17 ACO 754 ClG 09 08 50.1 -09 38 12           ~ 632 1
18 2MASX J09091923-0941591 BiC 09 09 19.233 -09 41 59.13   14   14.05   ~ 25 0
19 NAME Hya A LIN 09 18 05.651 -12 05 43.99   14.38 14.8     ~ 914 1
20 ACO 780 ClG 09 18 30 -12 15.7           ~ 435 0
21 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 336 1
22 ACO 3532 ClG 12 57 19.2 -30 22 13           ~ 156 2
23 ACO 1650 ClG 12 58 36.76 -01 43 34.2           ~ 272 0
24 ACO 1651 ClG 12 59 22.43 -04 11 47.1           ~ 274 0
25 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 511 0
26 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1029 0
27 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 239 2
28 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 409 2
29 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 285 1
30 ACO 3571 ClG 13 47 28.9 -32 51 57           ~ 265 2
31 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1167 0
32 ACO 2029 ClG 15 10 58.7 +05 45 42           ~ 860 0
33 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 682 1
34 NAME NGC 5920 Group ClG 15 21 50.7 +07 42 18     15.13     ~ 290 0
35 ACO 2065 ClG 15 22 42.6 +27 43 21           ~ 344 0
36 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 371 2
37 ACO 2142 ClG 15 58 20.00 +27 14 00.3           ~ 677 0
38 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1106 1
39 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 400 0
40 NAME Triangulum Australis Cluster ClG 16 38 16.1 -64 20 50           ~ 108 0
41 ACO 2244 ClG 17 02 34.01 +34 04 41.1           ~ 247 0
42 ACO 2256 ClG 17 03 43.5 +78 43 03           ~ 832 1
43 LDN 1682 DNe 17 08.2 -32 06           ~ 4 0
44 ACO 2255 ClG 17 12 50.04 +64 03 10.6           ~ 504 0
45 ACO 2319 ClG 19 20 45.3 +43 57 43           ~ 417 1
46 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2130 2
47 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 568 1
48 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 497 0
49 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 314 3
50 ACO 4059 ClG 23 56 40.7 -34 40 18           ~ 353 1

    Equat.    Gal    SGal    Ecl

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2020.10.24-17:56:47

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