2020MNRAS.499.3792B

Query : 2020MNRAS.499.3792B

2020MNRAS.499.3792B - Mon. Not. R. Astron. Soc., 499, 3792-3805 (2020/December-2)

The impact of disturbed galaxy clusters on the kinematics of active galactic nuclei.

BILTON L.E., PIMBBLET K.A. and GORDON Y.A.

Abstract (from CDS):

We produce a kinematic analysis of AGN-hosting cluster galaxies from a sample of 33 galaxy clusters selected using the X-ray Clusters Database (BAX) and populated with galaxies from the Sloan Digital Sky Survey Data Release 8. The 33 galaxy clusters are delimited by their relative intensity of member galaxy substructuring as a proxy to core merging to derive two smaller sub-samples of 8 dynamically active (merging) and 25 dynamically relaxed (non-merging) states. The AGN were selected for each cluster sub-sample by employing the WHAN diagram to the strict criteria of log10([N II]/Hα) >= -0.32 and EWHα >= 6 Å, providing pools of 70 mergings and 225 non-merging AGN sub-populations. By co-adding the clusters to their respective dynamical states to improve the signal-to-noise ratio of our AGN sub-populations we find that merging galaxy clusters on average host kinematically active AGN between 0-1.5r200 as r200 - 0, where their velocity dispersion profile (VDP) presents a significant deviation from the non-AGN sub-population VDP by >=3σ. This result is indicative that the AGN-hosting cluster galaxies have recently coalesced on to a common potential. Further analysis of the composite distributions illustrates non-merging AGN-hosting sub-populations have, on average, already been accreted and predominantly lie within backsplash regions of the projected phase-space. This suggests merging cluster dynamical states hold relatively younger AGN sub-populations kinematically compared with those found in non-merging cluster dynamical states.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: clusters: general - galaxies: kinematics and dynamics

Simbad objects: 34

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Number of rows : 34
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
2 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 577 2
3 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
4 ACO 602 ClG 07 53 23.51 +29 20 20.3           ~ 80 0
5 NAME ACO 901-902 Supercluster SCG 09 56 -10.0           ~ 127 1
6 ACO 1066 ClG 10 39 28.53 +05 11 01.2           ~ 96 1
7 ACO 1190 ClG 11 11 43.83 +40 51 43.5           ~ 145 0
8 ACO 1205 ClG 11 13 23.41 +02 30 42.8           ~ 74 0
9 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
10 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 169 0
11 ACO 1552 ClG 12 29 46.18 +11 44 32.3           ~ 109 0
12 ACO 1589 ClG 12 41 08.09 +18 33 18.5           ~ 112 0
13 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
14 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
15 ACO 1668 ClG 13 04 00.60 +19 17 09.6           ~ 132 0
16 ACO 1750 ClG 13 30 50.44 -01 51 27.1           ~ 190 2
17 ACO 1767 ClG 13 36 06.92 +59 10 34.3           ~ 182 0
18 ACO 1773 ClG 13 42 22.53 +02 15 14.2           ~ 119 0
19 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
20 ACO 1809 ClG 13 53 07.68 +05 08 32.7           ~ 179 0
21 ACO 1991 ClG 14 54 41.53 +18 38 08.4           ~ 349 1
22 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
23 ACO 2033 ClG 15 11 23.50 +06 19 08.4           ~ 110 0
24 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
25 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 214 1
26 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
27 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 414 2
28 ACO 2069 ClG 15 24 02.92 +29 53 20.3           ~ 165 0
29 ACO 2107 ClG 15 39 39.04 +21 46 57.8           ~ 270 0
30 ACO 2122 ClG 15 44 55.93 +36 06 05.2           ~ 243 0
31 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 416 0
32 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
33 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
34 ACO 2670 ClG 23 54 10.51 -10 23 06.8           ~ 364 0

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