2021A&A...655A.103Z

Query : 2021A&A...655A.103Z

2021A&A...655A.103Z - Astronomy and Astrophysics, volume 655A103-103 (2021/11-1)

Fossil group origins. XI. The dependence of galaxy orbits on the magnitude gap.

ZARATTINI S., BIVIANO A., AGUERRI J.A.L., GIRARDI M. and D'ONGHIA E.

Abstract (from CDS):


Aims. We aim to study how the orbits of galaxies in clusters depend on the prominence of the corresponding central galaxies.
Methods. We divided our data set of ∼100 clusters and groups into four samples based on their magnitude gap between the two brightest members, Δm12. We then stacked all the systems in each sample in order to create four stacked clusters and derive the mass and velocity anisotropy profiles for the four groups of clusters using the MAMPOSSt procedure. Once the mass profile is known, we also obtain the (non-parametric) velocity anisotropy profile via the inversion of the Jeans equation.
Results. In systems with the largest Δm12, galaxy orbits are generally radial, except near the centre, where orbits are isotropic (or tangential when also the central galaxies are considered in the analysis). In the other three samples with smaller Δm12, galaxy orbits are isotropic or only mildly radial.
Conclusions. Our study supports the results of numerical simulations that identify radial orbits of galaxies as the cause of an increasing Δm12 in groups.

Abstract Copyright: © S. Zarattini et al. 2021

Journal keyword(s): galaxies: clusters: general - galaxies: groups: general

Simbad objects: 96

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Number of rows : 96
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 ZwCl 0027-0036 ClG 00 29 27.73 -00 11 49.6           ~ 15 0
2 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
3 ACO 117 ClG 00 55 47.10 -09 58 24.6           ~ 79 0
4 ACO 152 ClG 01 10 09.08 +14 00 33.9           ~ 43 0
5 ACO 168 ClG 01 15 07.58 +00 19 10.8           ~ 379 2
6 BAX 024.3000-09.1833 ClG 01 37 13.37 -09 11 13.6           ~ 37 0
7 ACO 257 ClG 01 49 14.77 +14 02 29.8           ~ 45 0
8 ACO 267 ClG 01 52 43.016 +00 59 58.90           ~ 241 0
9 ZwCl 0743+3110 ClG 07 46 45.37 +31 00 11.6           ~ 17 0
10 7C 074905.70+460420.00 BLL 07 52 44.2077683088 +45 56 57.426578736   17.95 16.93     ~ 125 1
11 ACO 602 ClG 07 53 23.51 +29 20 20.3           ~ 80 0
12 7C 080418.60+340933.00 Bla 08 07 30.749 +34 00 41.70       15.8   ~ 20 1
13 ACO 628 ClG 08 10 06.32 +35 15 54.8           ~ 46 0
14 ClG J0810+4216 ClG 08 10 24.2 +42 16 19           ~ 29 0
15 ACO 690 ClG 08 39 14.34 +28 48 47.0           ~ 81 0
16 ACO 695 ClG 08 41 13.09 +32 24 59.7           ~ 44 0
17 MCXC J0844.9+4258 ClG 08 44 44.12 +43 01 07.6           ~ 27 1
18 ACO 724 ClG 08 58 24.12 +38 30 05.7           ~ 22 0
19 ACO 757 ClG 09 12 57.79 +47 43 45.2           ~ 67 0
20 ACO 779 ClG 09 20 02.70 +33 45 29.7           ~ 261 0
21 ACO 819 ClG 09 32 17.12 +09 40 45.1           ~ 29 0
22 PSZRX G160.65+46.86 ClG 09 47 21.77 +54 28 25.8           ~ 20 0
23 RXC J0953.6+0142 ClG 09 53 41.8 +01 41 58   17.1 13.98     ~ 16 0
24 ACO 971 ClG 10 19 52.08 +40 59 18.4           ~ 53 0
25 BAX 155.5304+38.5153 ClG 10 22 18.24 +38 32 39.6           ~ 63 0
26 ACO 999 ClG 10 23 22.1 +12 51 48           ~ 91 1
27 ACO 1003 ClG 10 24 55.03 +47 47 56.5           ~ 40 0
28 ACO 1016 ClG 10 27.0 +10 59           ~ 82 1
29 ACO 1066 ClG 10 39 28.53 +05 11 01.2           ~ 96 1
30 [SMS2007] 9 GrG 10 43 02.60 +00 54 18.3           ~ 7 0
31 BAX 163.4480+54.8499 ClG 10 53 50.83 +54 49 55.1           ~ 59 0
32 ACO 1142 ClG 11 00 56.74 +10 30 15.2           ~ 157 1
33 ACO 1149 ClG 11 02 58.00 +07 36 10.0           ~ 41 0
34 ACO 1169 ClG 11 07 55.69 +43 55 41.7           ~ 45 0
35 ACO 1205 ClG 11 13 23.41 +02 30 42.8           ~ 74 0
36 ZwCl 1114+5457 ClG 11 15 03.88 +54 26 30.2           ~ 33 0
37 MCXC J1121.7+0249 ClG 11 21 45.90 +02 50 00.7           ~ 21 0
38 1RXS J112154.2+104936 GrG 11 21 55.2 +10 49 23           ~ 10 1
39 ACO 1270 ClG 11 29 08.84 +54 06 55.4           ~ 51 0
40 ACO 1346 ClG 11 41 11.24 +05 45 22.6           ~ 75 0
41 1RXS J114128.4+055827 GrG 11 41 28.4 +05 58 27           ~ 7 0
42 ACT-CL J1146.7+0952 GrG 11 46 47.60 +09 52 28.2           ~ 17 0
43 ACO 1424 ClG 11 57 30.50 +05 05 24.5           ~ 68 0
44 ACO 1436 ClG 12 00 20.04 +56 17 10.1           ~ 120 0
45 ACO 1452 ClG 12 03 32.23 +51 43 34.9           ~ 77 0
46 ZwCl 1207+0542 ClG 12 10 29.06 +05 21 49.7           ~ 41 0
47 ACO 1507 ClG 12 14 54.31 +59 53 09.5           ~ 63 0
48 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 169 0
49 ACO 1516 ClG 12 18 48.82 +05 15 45.4           ~ 51 1
50 ACO 1552 ClG 12 29 46.18 +11 44 32.3           ~ 109 0
51 ACO 1564 ClG 12 35 01.95 +01 47 54.4           ~ 35 0
52 ACO 1616 ClG 12 47 05.04 +54 58 45.3           ~ 32 0
53 [SMS2007] 17 GrG 12 47 41.7 +41 31 43           ~ 10 0
54 ACO 1620 ClG 12 50 03.89 -01 32 26.7           ~ 54 0
55 ACO 1630 ClG 12 52 03.13 +04 34 28.5           ~ 44 0
56 ACO 1663 ClG 13 02 52.55 -02 31 04.0           ~ 112 0
57 ZwCl 1316-0044 ClG 13 19 16.58 -00 55 01.2           ~ 20 0
58 ACO 1728 ClG 13 23 18.78 +11 18 17.8           ~ 31 0
59 ACO 1750 ClG 13 30 50.44 -01 51 27.1           ~ 190 2
60 ClG J1336-0331 GrG 13 36 00.00 -03 31 29.2           ~ 14 0
61 ACO 1767 ClG 13 36 06.92 +59 10 34.3           ~ 182 0
62 ACO 1783 ClG 13 43 39.27 +55 37 53.5           ~ 45 0
63 MCXC J1351.7+4622 ClG 13 51 45.6 +46 22 00           ~ 29 0
64 ACO 1809 ClG 13 53 07.68 +05 08 32.7           ~ 179 0
65 NSC J141011+414538 GrG 14 09 59.94 +41 46 04.3           ~ 15 0
66 ACO 1885 ClG 14 13 43.73 +43 39 45.0           ~ 75 0
67 ZwCl 1420+4025 ClG 14 23 58.55 +40 15 40.0           ~ 22 0
68 RXC J1424.8+0240 ClG 14 24 48.5 +02 40 56           ~ 5 0
69 6C 143801+372019 BLL 14 40 03.4477832064 +37 07 27.399073800     18.01     ~ 27 1
70 BAX 220.1796+03.4530 ClG 14 40 34.37 +03 29 49.7     14.31     ~ 131 0
71 [SMS2007] 22 GrG 14 53 59.0 +48 24 17           ~ 9 0
72 ACO 1999 ClG 14 54 05.14 +54 16 39.0           ~ 35 0
73 ACO 2018 ClG 15 01 17.59 +47 16 30.2           ~ 66 0
74 ACO 2023 ClG 15 05 49 +02 51.4           ~ 12 0
75 NSC J152902+524945 ClG 15 29 02.81 +52 49 44.8           ~ 3 0
76 PSZRX G071.71+54.07 GrG 15 29 46.29 +44 08 04.2           ~ 14 0
77 ACO 2092 ClG 15 33 19.99 +31 09 12.3           ~ 130 0
78 ACO 2110 ClG 15 39 39.82 +30 42 27.9           ~ 83 0
79 RX J1548.9+0851 GrG 15 48 55.90 +08 50 44.4           ~ 13 0
80 ACO 2149 ClG 16 00 53.08 +53 56 57.6           ~ 79 0
81 [YSS2008] 149 ClG 16 11 29.88 +37 00 00.9           ~ 4 0
82 ACO 2169 ClG 16 13 59.22 +49 07 07.2           ~ 64 0
83 ACO 2165 GrG 16 14 09 +26 40.5           ~ 26 0
84 ACO 2175 ClG 16 20 30.70 +29 53 31.2           ~ 133 0
85 1RXS J163721.3+411106 GrG 16 37 21.3 +41 11 06           ~ 5 0
86 [SMS2007] 29 GrG 16 47 02.1 +38 50 04           ~ 6 0
87 ACO 2241 ClG 16 59 42.58 +32 34 44.4           ~ 85 1
88 ACO 2245 ClG 17 02 38.26 +33 30 10.0           ~ 66 0
89 ACO 2244 ClG 17 02 40.33 +34 02 58.7           ~ 301 0
90 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
91 ZwCl 1717+5636 ClG 17 18 09.272 +56 40 00.02           ~ 53 1
92 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 284 0
93 ZwCl 1730+5829 ClG 17 31.2 +58 27           ~ 6 0
94 ACO 2428 ClG 22 16 07.01 -09 20 19.5           ~ 62 0
95 ACO 2670 ClG 23 54 10.51 -10 23 06.8           ~ 364 0
96 1RXS J235814.4+150524 GrG 23 58 14.4 +15 05 24           ~ 9 0

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