2008MNRAS.390.1562H

Query : 2008MNRAS.390.1562H

2008MNRAS.390.1562H - Mon. Not. R. Astron. Soc., 390, 1562-1568 (2008/November-2)

Alignment of galaxies and clusters.

HASHIMOTO Y., HENRY J.P. and BOEHRINGER H.

Abstract (from CDS):

We investigated the influence of environment on cluster galaxies by examining the alignment of the brightest cluster galaxy (BCG) position angle with respect to the host cluster X-ray position angle. The cluster position angles were measured using high spatial resolution X-ray data taken from the Chandra Advanced CCD Imaging Spectrometer archive that significantly improved the determination of the cluster shape as compared to the conventional method of using optical images. Meanwhile, those of the BCGs were measured using homogeneous data set composed of high spatial resolution optical images taken with Suprime-Cam mounted on Subaru 8-m telescope.

We found a strong indication of an alignment between the cluster X-ray emission and optical light from BCGs, while we see no clear direct correlation between the degree of ellipticity of X-ray and optical BCG morphologies, despite the apparent alignment of two elliptical structures. We have also investigated possible dependence of the position angle alignment on the X-ray morphology of the clusters, and no clear trends are found. The fact that no trends are evident regarding frequency or degree of the alignment with respect to X-ray morphology may be consistent with an interpretation as a lack of dependence on the dynamical status of clusters.


Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

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

Simbad objects: 32

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Number of rows : 32
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 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 517 0
2 ZwCl 0024+1652 ClG 00 26 35.6 +17 09 32     18.35     ~ 648 1
3 ClG J0152-1358 ClG 01 52 41.3 -13 58 13           ~ 262 3
4 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 825 0
5 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 465 0
6 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 368 0
7 ZwCl 0847+3617 ClG 08 50 12.0 +36 03 36           ~ 75 0
8 ACO 750 ClG 09 09 06.7 +11 01 48           ~ 105 1
9 ZwCl 0947+1723 ClG 09 49 51.8 +17 07 05           ~ 92 0
10 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
11 ClG J1053+5735 ClG 10 53 43.4 +57 35 21           ~ 31 1
12 ClG 1054-03 ClG 10 57 00.2 -03 37 27     22     ~ 458 0
13 ZwCl 1113+0144 ClG 11 15 54.0 +01 29 44           ~ 42 0
14 ClG J1226+3332 ClG 12 26 57.7 +33 32 50           ~ 228 0
15 ACO 1722 ClG 13 20 08.3 +70 04 33           ~ 63 0
16 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 266 2
17 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 577 0
18 ClG J1350+6007 ClG 13 50 48.55 +60 07 06.7           ~ 46 0
19 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
20 ACO 2034 ClG 15 10 03.9 +33 30 57           ~ 248 1
21 ACO 2069 ClG 15 24 02.92 +29 53 20.3           ~ 165 0
22 ClG J1532+3021 ClG 15 32 53.8 +30 21 00           ~ 122 0
23 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 381 0
24 ClG J1716+6708 ClG 17 16 49.6 +67 08 30           ~ 137 0
25 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
26 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
27 ClG 2053-04 ClG 20 56 21.2 -04 37 46   21.0       ~ 168 0
28 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 308 0
29 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
30 BAX 337.1433+20.6131 ClG 22 28 32.6 +20 37 08           ~ 132 0
31 ACO 2552 ClG 23 11 31.7 +03 37 44           ~ 87 0
32 ACO 2631 ClG 23 37 40.7 +00 16 35           ~ 183 0

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