2018MNRAS.477..335L

Query : 2018MNRAS.477..335L

2018MNRAS.477..335L - Mon. Not. R. Astron. Soc., 477, 335-358 (2018/June-2)

Diversity in the stellar velocity dispersion profiles of a large sample of brightest cluster galaxies z <= 0.3.

LOUBSER S.I., HOEKSTRA H., BABUL A. and O'SULLIVAN E.

Abstract (from CDS):

We analyse spatially resolved deep optical spectroscopy of brightestcluster galaxies (BCGs) located in 32 massive clusters with redshifts of 0.05 <= z <= 0.30 to investigate their velocity dispersion profiles. We compare these measurements to those of other massive early-type galaxies, as well as central group galaxies, where relevant. This unique, large sample extends to the most extreme of massive galaxies, spanning MK between -25.7 and -27.8 mag, and host cluster halo mass M500 up to 1.7 x 1015 M☉. To compare the kinematic properties between brightest group and cluster members, we analyse similar spatially resolved long-slit spectroscopy for 23 nearby brightest group galaxies (BGGs) from the Complete Local-Volume Groups Sample. We find a surprisingly large variety in velocity dispersion slopes for BCGs, with a significantly larger fraction of positive slopes, unique compared to other (non-central) early-type galaxies as well as the majority of the brightest members of the groups. We find that the velocity dispersion slopes of the BCGs and BGGs correlate with the luminosity of the galaxies, and we quantify this correlation. It is not clear whether the full diversity in velocity dispersion slopes that we see is reproduced in simulations.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: clusters: general - galaxies: elliptical and lenticular, cD - galaxies: kinematics and dynamics - galaxies: stellar content

Simbad objects: 63

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Number of rows : 63
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 68 ClG 00 37 06.2 +09 09 33           ~ 195 0
2 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
3 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 869 2
4 NGC 410 GiG 01 10 58.9016492712 +33 09 07.053878052 13.08 12.52 11.48     ~ 163 2
5 NGC 524 GiP 01 24 47.7429545736 +09 32 20.089023900   11.5       ~ 494 1
6 NGC 584 Sy2 01 31 20.7231919800 -06 52 04.770287472 11.93 11.44 10.48     ~ 417 2
7 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 326 0
8 ACO 267 ClG 01 52 43.016 +00 59 58.90           ~ 241 0
9 NGC 777 BLL 02 00 14.9065707744 +31 25 45.850721628 13.09 12.49 11.45     ~ 195 2
10 NGC 924 GiG 02 26 46.8206455368 +20 29 51.036018756   13.8       ~ 70 0
11 NGC 1060 GiG 02 43 15.045 +32 25 30.04 13.71 13.00 11.81     ~ 117 1
12 ACO 383 ClG 02 48 03.3915 -03 31 45.228           ~ 389 0
13 NGC 1453 EmG 03 46 27.2307890592 -03 58 07.831476768   13   11.30   ~ 189 0
14 NGC 1587 GiP 04 30 39.9359019384 +00 39 41.922470340   13.3       ~ 146 0
15 ClG 0440+02 ClG 04 43 09.7 +02 10 19     17.03     ~ 129 0
16 NGC 1779 Sy2 05 05 18.0311553816 -09 08 50.070486912   13.18   11.86   ~ 47 0
17 ACO 586 ClG 07 32 20.3 +31 37 58           ~ 196 0
18 ACO 611 ClG 08 00 58.7 +36 02 49           ~ 275 0
19 ACO 644 ClG 08 17 26.1 -07 31 13           ~ 241 0
20 NGC 2563 GiG 08 20 35.6870161656 +21 04 04.111020012   13.7 12.39     ~ 163 1
21 ACO 646 ClG 08 22 10.0 +47 05 58           ~ 102 1
22 ClG 0906.5+1110 ClG 09 09 12.7 +10 58 32           ~ 108 0
23 ACO 754 ClG 09 09 14.8 -09 40 35           ~ 695 1
24 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
25 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
26 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
27 ACO 990 ClG 10 23 39.46 +49 08 19.6           ~ 88 0
28 NGC 3613 GiG 11 18 36.130 +57 59 59.73   11.6       ~ 221 0
29 NGC 3665 GiG 11 24 43.630 +38 45 46.05 13.71 13.26 11.62     ~ 364 1
30 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
31 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
32 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
33 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
34 NGC 5127 LIN 13 23 45.0315298080 +31 33 56.527040808   13.9       ~ 183 0
35 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
36 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
37 NGC 5353 rG 13 53 26.7104646981 +40 16 59.200050598   11.8   10.57   ~ 309 1
38 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
39 NGC 5490 GiG 14 09 57.330 +17 32 43.53   13.4 15.5     ~ 178 1
40 NGC 5629 GiG 14 28 16.3720374384 +25 50 55.459877604   14.2       ~ 78 0
41 ACO 1942 ClG 14 38 21.8673 +03 40 13.247           ~ 122 0
42 ACO 1991 ClG 14 54 41.53 +18 38 08.4           ~ 349 1
43 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 309 0
44 NGC 5846 rG 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 891 2
45 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
46 IC 1101 rG 15 10 56.100 +05 44 41.19   15.10       ~ 165 2
47 ACO 2050 ClG 15 16 18.7 +00 05 31           ~ 122 0
48 ACO 2055 ClG 15 18 46.29 +06 13 42.9           ~ 113 0
49 NGC 5982 LIN 15 38 39.778 +59 21 21.21   12.4       ~ 302 0
50 ACO 2104 ClG 15 40 06.8 -03 17 39           ~ 113 0
51 2MASX J15400795-0318162 BiC 15 40 07.958 -03 18 16.29   17.80 16.40 15.70 15.11 ~ 9 0
52 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
53 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
54 NGC 6166 Sy2 16 28 38.24470063 +39 33 04.2335319   12.78 11.78     ~ 793 2
55 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
56 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
57 NGC 6658 GiG 18 33 55.6327067976 +22 53 17.737619712   15.0       ~ 46 0
58 ACO 2319 ClG 19 21 14.0 +43 56 57           ~ 495 1
59 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
60 ACO 2420 ClG 22 10 22.5 -12 11 13           ~ 126 0
61 ACO 2537 ClG 23 08 22.3 -02 11 29           ~ 152 0
62 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 472 0
63 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0

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