2009MNRAS.396.1647C

Query : 2009MNRAS.396.1647C

2009MNRAS.396.1647C - Mon. Not. R. Astron. Soc., 396, 1647-1658 (2009/July-1)

Velocity dispersion measurements of dwarf galaxies in the Coma cluster - implications for the structure of the fundamental plane.

CODY A.M., CARTER D., BRIDGES T.J., MOBASHER B. and POGGIANTI B.M.

Abstract (from CDS):

We present intermediate-resolution spectroscopic data for a set of dwarf and giant galaxies in the Coma cluster, with -20.6 < MR < -15.7. The photometric and kinematic properties of the brighter galaxies can be cast in terms of parameters which present little scatter with respect to a set of scaling relations known as the fundamental plane. To determine the form of these fundamental scaling relations at lower luminosities, we have measured velocity dispersions for a sample comprising 69 galaxies on the border of the dwarf and giant regime. Combining these data with our photometric survey, we find a tight correlation of luminosity and velocity dispersion, L ∝ σ2.0, substantially flatter than the Faber-Jackson relation characterizing giant elliptical galaxies. In addition, the variation of mass-to-light (M/L) ratio with velocity dispersion is quite weak in our dwarf sample: M/L ∝ σ0.2. Our overall results are consistent with theoretical models invoking large-scale mass removal and subsequent structural readjustment, e.g. as a result of galactic winds.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): galaxies: clusters: individual: Coma - galaxies: dwarf - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: fundamental parameters - galaxies: kinematics and dynamics

CDS comments: In Table A1 : Identification GMP seems to be erroneous for GMP 4042, 4375, 4430, 4522, 4644 and 5364.

Simbad objects: 81

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Number of rows : 81
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 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1150 2
2 HD 65583 PM* 08 00 32.1297283166 +29 12 44.475101673 7.89 7.71 7.00 6.40 5.98 K0V_Fe-1.3 338 0
3 HD 75839 * 08 41 14.1301242480 -81 33 39.035743740   9.88 9.54     A5(III)s 5 0
4 HD 90861 * 10 29 53.6918682240 +28 34 52.393516824   8.01 6.90     G8III: 57 0
5 2MASX J12561667+2726450 GiC 12 56 16.6917440568 +27 26 45.572924328   16.60   14.89   ~ 23 0
6 IC 3913 EmG 12 56 28.5817741560 +27 17 28.501401516   15.82 14.94 14.97   ~ 105 0
7 LEDA 94037 GiC 12 56 32.0394242160 +27 03 20.111554476   16.18   14.81   ~ 31 0
8 NGC 4824 LIN 12 56 34.1917941432 +27 32 20.298306732   15       ~ 61 0
9 LEDA 94036 EmG 12 56 34.603 +27 13 39.04   16.53 15.51 15.44   ~ 34 0
10 2MASX J12563598+2654168 GiC 12 56 36.032 +26 54 17.18   17.86   16.44   ~ 20 0
11 LEDA 126891 GiC 12 56 40.9392429024 +27 26 51.922637700   18.82 17.63 17.53   ~ 18 0
12 2MASX J12564235+2732538 GiC 12 56 42.387 +27 32 53.73   18.01 16.63 16.45   ~ 24 0
13 LEDA 4348154 GiC 12 56 47.00360 +27 03 24.9366   18.79 17.78 17.74   ~ 14 0
14 2MASX J12564777+2725158 EmG 12 56 47.7779696160 +27 25 15.645102888   17.04 15.87 15.57   ~ 39 0
15 2MASX J12570166+2722198 GiC 12 57 01.6984964064 +27 22 19.473476772   16.70   15.18   ~ 25 0
16 LEDA 83675 G 12 57 04.310 +27 31 32.85   17.44 16.12 15.87 15.74 ~ 34 0
17 [HHM2010] 194.27399+27.08906 GiC 12 57 05.757 +27 05 20.55   19.73 18.18 18.22   ~ 8 0
18 2MASX J12571193+2706118 AGN 12 57 11.957 +27 06 12.01   17.43 16.20 16.01   ~ 28 0
19 LEDA 1794264 GiC 12 57 18.552 +26 58 46.45   18.88 17.28 17.02   ~ 14 0
20 ECO 11571 GiC 12 57 21.7035780960 +27 28 29.556576372   18.67   16.98   ~ 17 0
21 NGC 4839 BiC 12 57 24.3563164776 +27 29 52.203087132 13.56 13.02 12.06     ~ 482 3
22 2MASX J12573058+2732348 GiC 12 57 30.5916594048 +27 32 34.964349792   18.21 17.03 16.77   ~ 19 0
23 [HHM2010] 194.45896+27.14903 GiC 12 57 50.152 +27 08 56.50     18.16 18.11   ~ 7 0
24 LEDA 126851 GiC 12 57 50.7585366552 +27 29 27.175356780     17.71 17.30   ~ 19 0
25 MCG+05-31-036 AGN 12 57 54.3651088944 +27 29 26.392988076   16.38 15.12 14.65   ~ 55 1
26 GMP 4591 GiC 12 57 55.37297 +27 13 55.2663   18.65 17.06 16.99   ~ 16 0
27 LEDA 126848 GiC 12 57 56.521 +27 22 55.49     16.65 16.49   ~ 24 0
28 SDSS J125757.98+272102.8 GiC 12 57 57.9814673112 +27 21 02.834829180   19.48 18.27 18.04   ~ 10 0
29 MCG+05-31-037 LIN 12 58 01.5650845536 +27 29 22.847682660   14.5 14.65 14.47   ~ 55 0
30 Z 160-52 GiG 12 58 03.1671435984 +26 54 57.503683836   15.92   14.51   ~ 40 0
31 2MASX J12580605+2725075 GiC 12 58 06.0698357520 +27 25 08.194606680   17.43 16.07 15.76   ~ 25 0
32 GMP 4430 G 12 58 11.7086152800 +27 02 18.914587872           ~ 4 0
33 SDSS J125812.99+265658.1 GiC 12 58 12.996 +26 56 58.16   19.49 18.26 18.15   ~ 9 0
34 LEDA 126836 G 12 58 15.268 +27 27 52.91   19.14 17.73 17.48 17.63 ~ 17 0
35 [HHM2010] 194.56907+27.14576 GiC 12 58 16.576 +27 08 44.83     19.22 19.00   ~ 6 0
36 TT 33 AGN 12 58 18.6318954144 +27 18 38.983019940   16.95 15.94 15.69   ~ 83 0
37 LEDA 1792432 EmG 12 58 20.2771880088 +26 55 14.280114000   18.17 17.02 16.81   ~ 17 0
38 LEDA 126829 EmG 12 58 20.531 +27 25 45.78     16.69 16.50 16.46 ~ 27 0
39 LEDA 4349278 GiC 12 58 31.663 +27 23 42.08   18.77 17.22 17.11   ~ 16 0
40 2MASX J12583314+2721517 GiC 12 58 33.1369880712 +27 21 51.737031936   15       ~ 33 1
41 LEDA 1819310 GiC 12 58 33.7786338216 +27 50 12.316672104 18.58 18.44 16.87 16.59   ~ 18 0
42 [HHM2010] 194.64204+26.89986 GiC 12 58 34.088 +26 53 59.47     18.00 17.75   ~ 9 0
43 SDSS J125835.42+274630.0 GiC 12 58 35.43130 +27 46 30.0798 20.20 20.01 18.34 18.04   ~ 8 0
44 Z 160-67 AGN 12 58 37.27827 +27 10 35.7420   15.88 14.71 14.50   ~ 129 1
45 GMP 4122 GiC 12 58 37.402 +28 13 10.19   19.16 17.34 17.04   ~ 11 0
46 LEDA 83723 rG 12 58 38.4166085016 +27 32 38.796009144   16.69   15.15   ~ 36 0
47 CAIRNS J125844.12+280255.7 GiC 12 58 44.15009 +28 02 56.2930 18.78 16.70 17.02 16.73   ~ 14 0
48 LEDA 126815 AG? 12 58 45.543 +27 45 13.96 18.55 18.47 16.82 16.72 16.6 ~ 32 0
49 LEDA 1824079 GiC 12 58 48.15395 +28 01 07.4052 18.56 18.49 16.75 16.41 16.637 ~ 28 0
50 CAIRNS J125850.80+280024.9 GiC 12 58 50.82193 +28 00 25.2008 18.61 18.875 17.21 16.87 16.851 ~ 17 0
51 SDSS J125855.77+282113.4 GiC 12 58 55.76865 +28 21 13.5099   19.72 18.00 17.83   ~ 8 0
52 CAIRNS J125906.38+273338.9 GiC 12 59 06.408 +27 33 39.31   19.34 17.97 17.78   ~ 7 0
53 SDSS J125909.90+280952.1 GiC 12 59 09.90961 +28 09 52.1836 18.48 18.71 17.46 17.22   ~ 14 0
54 LEDA 126800 G 12 59 11.5550609088 +28 00 33.405609060 18.34 18.12 16.76 16.43 16.03 ~ 36 0
55 LEDA 126799 GiC 12 59 14.6220050424 +27 53 44.114691984 19.13 18.903 17.66 17.30 16.613 ~ 23 0
56 LEDA 126798 GiC 12 59 14.984 +28 15 03.66 17.42 17.60 16.12 16.01   ~ 27 0
57 CAIRNS J125916.68+275856.9 GiC 12 59 16.62 +27 58 57.0 20.85 20.396 19.15 18.76 18.154 ~ 10 0
58 SDSS J125917.15+273802.9 GiC 12 59 17.15283 +27 38 02.9859 19.64 19.50 18.03 17.81   ~ 9 0
59 LEDA 126796 GiC 12 59 18.3631791264 +27 42 56.704627152 18.30 18.26 16.57 16.41   ~ 20 1
60 LEDA 126795 GiC 12 59 18.54581 +27 35 36.9732 17.79 17.93 17.04 16.95   ~ 25 0
61 LEDA 1822852 GiC 12 59 19.71516 +27 58 24.5874 18.57 18.677 17.13 16.81 16.686 ~ 32 0
62 SDSS J125923.41+275510.4 GiC 12 59 23.4135989592 +27 55 10.460997300 19.202 18.699 17.692 17.15 16.511 ~ 21 0
63 SDSS J125926.45+275124.7 AG? 12 59 26.457 +27 51 24.78 19.22 19.12 17.72 17.46 17.5 ~ 23 0
64 LEDA 126790 GiC 12 59 31.60003 +28 06 01.9468   18.71 17.15 16.92   ~ 21 0
65 LEDA 1821555 GiC 12 59 32.105 +27 55 15.75 19.30 19.13 17.59 17.20 17.13 ~ 24 0
66 LEDA 44635 AG? 12 59 37.9916897496 +28 00 03.640609728 18.17 18.097 16.60 16.20 16.031 ~ 36 0
67 LEDA 44643 EmG 12 59 39.8152735224 +27 34 35.193798804   16.53 15.56 15.42   ~ 55 0
68 LEDA 126783 GiC 12 59 44.1472497936 +28 10 34.695058548   18.52 17.14 16.82   ~ 15 0
69 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
70 LEDA 126782 GiC 12 59 46.279 +27 44 46.50 18.39 18.16 16.81 16.82 16.95 ~ 25 0
71 LEDA 126781 G 12 59 46.93296 +27 59 30.8768 18.90 18.62 17.43 17.14 16.9 ~ 29 0
72 LEDA 126776 AG? 12 59 55.696 +27 55 03.75 19.979 19.40 18.60 17.98 17.7 ~ 23 0
73 SDSS J130000.97+275929.5 G 13 00 00.972 +27 59 29.55 19.93 19.666 18.23 17.91 17.8 ~ 20 0
74 2MASX J13000425+2809182 GiC 13 00 04.246 +28 09 18.39   18.12 16.65 16.25   ~ 34 0
75 LEDA 126764 G 13 00 11.1464834832 +28 03 54.824309496 18.29 18.181 16.72 16.36 16.149 ~ 40 0
76 SDSS J130017.40+274241.3 GiC 13 00 17.407 +27 42 41.36 19.54 19.46 17.64 17.46   ~ 10 0
77 2MASX J13002014+2750365 GiC 13 00 20.170 +27 50 36.62 18.14 18.139 16.41 16.05 16.129 ~ 34 0
78 LEDA 126758 EmG 13 00 21.6698381208 +27 53 54.785936292 18.39 18.205 16.81 16.57 16.171 ~ 36 0
79 LEDA 126756 G 13 00 24.82156 +27 55 35.8484 18.50 18.52 16.57 16.21 16.499 ~ 36 0
80 2MASX J13004540+2750076 GiC 13 00 45.407 +27 50 07.64 18.357 18.048 16.71 16.37 16.072 ~ 26 0
81 LEDA 1820946 GiC 13 00 55.931 +27 53 54.60 18.45 18.511 16.88 16.62 16.527 ~ 27 0

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