2017ApJ...835..104V

Query : 2017ApJ...835..104V

2017ApJ...835..104V - Astrophys. J., 835, 104-104 (2017/January-3)

The SAMI Galaxy Survey: revisiting Galaxy classification through high-order stellar kinematics.

VAN DE SANDE J., BLAND-HAWTHORN J., FOGARTY L.M.R., CORTESE L., D'EUGENIO F., CROOM S.M., SCOTT N., ALLEN J.T., BROUGH S., BRYANT J.J., CECIL G., COLLESS M., COUCH W.J., DAVIES R., ELAHI P.J., FOSTER C., GOLDSTEIN G., GOODWIN M., GROVES B., HO I.-T., JEONG H., JONES D.H., KONSTANTOPOULOS I.S., LAWRENCE J.S., LESLIE S.K., LOPEZ-SANCHEZ A.R., McDERMID R.M., McELROY R., MEDLING A.M., OH S., OWERS M.S., RICHARDS S.N., SCHAEFER A.L., SHARP R., SWEET S.M., TARANU D., TONINI C., WALCHER C.J. and YI S.K.

Abstract (from CDS):

Recent cosmological hydrodynamical simulations suggest that integral field spectroscopy can connect the high-order stellar kinematic moments h3 (∼skewness) and h4 (∼kurtosis) in galaxies to their cosmological assembly history. Here, we assess these results by measuring the stellar kinematics on a sample of 315 galaxies, without a morphological selection, using two-dimensional integral field data from the SAMI Galaxy Survey. Proxies for the spin parameter (λRe_) and ellipticity (εe) are used to separate fast and slow rotators; there exists a good correspondence to regular and non-regular rotators, respectively, as also seen in earlier studies. We confirm that regular rotators show a strong h3 versus V/σanti-correlation, whereas quasi-regular and non-regular rotators show a more vertical relation in h3 and V/σ. Motivated by recent cosmological simulations, we develop an alternative approach to kinematically classify galaxies from their individual h3 versus V/σsignatures. Within the SAMI Galaxy Survey, we identify five classes of high-order stellar kinematic signatures using Gaussian mixture models. Class 1 corresponds to slow rotators, whereas Classes 2-5 correspond to fast rotators. We find that galaxies with similar λRe–εe_ values can show distinctly different h3–V/σsignatures. Class 5 objects are previously unidentified fast rotators that show a weak h3 versus V/σanti-correlation. From simulations, these objects are predicted to be disk-less galaxies formed by gas-poor mergers. From morphological examination, however, there is evidence for large stellar disks. Instead, Class 5 objects are more likely disturbed galaxies, have counter-rotating bulges, or bars in edge-on galaxies. Finally, we interpret the strong anti-correlation in h3 versus V/σas evidence for disks in most fast rotators, suggesting a dearth of gas-poor mergers among fast rotators.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): cosmology: observations - galaxies: evolution - galaxies: formation - galaxies: kinematics and dynamics - galaxies: stellar content - galaxies: structure - galaxies: structure

VizieR on-line data: <Available at CDS (J/ApJ/835/104): table2.dat table3.dat>

Simbad objects: 144

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Number of rows : 144
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 NGC 680 GiP 01 49 47.2923018240 +21 58 15.142526652   13.0       ~ 154 0
2 NGC 1121 AG? 02 50 39.1813506744 -01 44 02.730478812   13.7       ~ 57 0
3 NGC 2577 GiP 08 22 43.4495600280 +22 33 11.142071640   13.8       ~ 133 0
4 NGC 2592 AG? 08 27 08.0516435904 +25 58 13.122058224   13.6       ~ 126 0
5 NGC 2594 AG? 08 27 17.1616179576 +25 52 43.686523164   15.0       ~ 60 0
6 LEDA 1183671 G 08 37 56.6173397184 +01 04 20.832830904           ~ 9 0
7 SDSS J084037.80+023710.7 G 08 40 37.8049619736 +02 37 10.804401948           ~ 8 0
8 SDSS J084404.22+024241.5 G 08 44 04.2167847576 +02 42 41.512582692           ~ 11 0
9 Z 5-4 G 08 44 28.4526107496 +02 03 50.209940664   15.7       ~ 37 0
10 NVSS J084531+022835 rG 08 45 31.7920575456 +02 28 33.169330344           ~ 16 0
11 LEDA 1207263 G 08 46 46.0380854400 +01 49 50.944038924           ~ 16 0
12 LEDA 1230753 G 08 46 54.2922565656 +02 33 36.221172264           ~ 26 0
13 Z 5-11 LIN 08 48 28.2633531384 +01 23 50.093293020   15.7       ~ 31 0
14 Z 5-12 LIN 08 48 40.2167579544 +01 02 19.637702700   14.9       ~ 45 0
15 LEDA 1162815 G 08 50 31.6946917536 +00 19 08.632130016           ~ 18 0
16 LEDA 153189 EmG 08 50 32.6358698880 -00 15 10.144538928   17.12   15.74   ~ 17 0
17 2MASX J08504525+0118573 LIN 08 50 45.2741837736 +01 18 57.561125544           ~ 22 0
18 Z 5-17 G 08 51 09.7921903176 +00 15 12.899561508   15.5       ~ 27 0
19 2MASX J08533726+0143033 Sy2 08 53 37.2507752376 +01 43 03.755388396   17.95 17.33     ~ 18 0
20 2MASX J08533929+0045294 LIN 08 53 39.2745759240 +00 45 29.383992504           ~ 23 0
21 LEDA 1169187 G 08 54 01.3834547304 +00 33 32.311055232           ~ 13 0
22 IRAS F08515+0123 G 08 54 05.9034906144 +01 11 30.723389664           ~ 28 0
23 Z 5-24 G 08 54 08.5186035192 +00 29 54.904613028   15.5       ~ 37 0
24 NGC 2695 GiG 08 54 27.0744277224 -03 04 00.993904032   13.3       ~ 115 0
25 Z 5-29 G 08 55 23.8199398272 +00 51 15.698551464   15.6       ~ 19 0
26 NGC 2699 GiG 08 55 48.7851438216 -03 07 39.575588736   13.6       ~ 110 0
27 Z 5-43 Sy2 08 58 28.5922639728 +00 01 24.531135960   17.15 16.60     ~ 43 1
28 NPM1G +00.0234 G 08 58 28.5998204904 +00 38 13.637605668           ~ 33 0
29 NPM1G +00.0239 G 09 00 05.0433499416 +00 04 46.769547972           ~ 29 0
30 SDSS J090207.39+020209.6 G 09 02 07.3935126096 +02 02 09.698907048           ~ 9 0
31 LEDA 3354601 G 09 09 59.1733206864 +02 44 00.519790344           ~ 16 0
32 LEDA 1222504 G 09 10 50.7748905336 +02 18 05.381830440           ~ 15 0
33 2MASX J09160916+0017477 LIN 09 16 09.1424250744 +00 17 47.545064556           ~ 13 0
34 Z 6-23 AGN 09 16 13.7563603392 +00 42 02.407109220   15.73 15.15     ~ 34 0
35 Z 6-25 G 09 16 50.03336 +00 34 21.7653   15.5       ~ 33 0
36 IC 531 Sy2 09 17 50.7999577128 -00 16 42.131405100   14.44       ~ 68 1
37 NGC 2824 AGN 09 19 02.2176446256 +26 16 11.997810444   14.3       ~ 126 1
38 2MASX J09191636+0102106 BiC 09 19 16.3543540896 +01 02 10.687751052           ~ 15 0
39 2MASX J09221735-0032488 LIN 09 22 17.3295214944 -00 32 49.040057364   16.02   14.55   ~ 23 0
40 LEDA 26546 G 09 22 40.9197075744 +02 06 41.624679960           ~ 31 0
41 LEDA 153923 G 09 22 44.9418592224 -00 20 55.814684784   16.48   15.03   ~ 14 0
42 NGC 2852 GiP 09 23 14.6019569160 +40 09 49.759151868   14.0       ~ 73 0
43 Z 6-37 LIN 09 23 18.6926439336 +01 34 59.269347696   15.6       ~ 25 0
44 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
45 NGC 3458 GiG 10 56 01.4778952176 +57 07 01.095032244   13.20       ~ 117 1
46 NGC 3610 GiG 11 18 25.2827189856 +58 47 10.433735988   11.4       ~ 327 0
47 NGC 3648 GiG 11 22 31.5070422432 +39 52 36.753613320   13.57 12.64     ~ 84 0
48 NGC 3757 GiG 11 37 02.8650138288 +58 24 55.817369748   13.5       ~ 87 0
49 Z 12-43 LIN 11 37 27.4630340688 -00 50 47.684006340   15.7       ~ 21 0
50 NGC 3838 GiP 11 44 13.7648109936 +57 56 53.538816012   12.7       ~ 102 0
51 Z 12-75 GiG 11 45 09.8922282216 -01 45 45.412338276   15.4   14.108   ~ 31 0
52 Z 12-96 EmG 11 49 36.3446698032 -01 27 19.895373324   14.8   10.93   ~ 35 0
53 LEDA 1187385 G 11 52 46.0680929784 +01 11 41.265755952   17.096   15.769   ~ 9 0
54 LEDA 1190216 G 11 52 58.0004411448 +01 17 16.147111200   17.223   15.922   ~ 10 0
55 SDSS J115315.89+011240.3 G 11 53 15.8968118568 +01 12 40.308934824   17.185   15.838   ~ 12 0
56 Z 13-11 G 11 57 23.0388386856 +00 29 14.083094040   15.6   15.354   ~ 27 0
57 LEDA 1170356 G 11 57 30.0066431808 +00 36 09.188243064   17.251   15.951   ~ 12 0
58 2MASX J11573658+0108269 EmG 11 57 36.6135441312 +01 08 26.746348956   16.229   15.145   ~ 24 0
59 LEDA 1189921 G 11 57 54.7022280408 +01 16 37.215800544   17.180   15.921   ~ 12 0
60 LEDA 1192796 G 11 58 33.4558066224 +01 22 12.021150288   17.634   16.370   ~ 14 0
61 LEDA 1118842 G 11 58 56.0356397712 -01 25 49.467157896   17.529   16.420   ~ 17 0
62 Z 13-31 G 11 59 50.6826603360 -01 22 54.932582604   15.5   15.008   ~ 30 0
63 2dFGRS TGN449Z002 Sy2 12 01 37.8477324312 +01 11 52.749472128   18.28 17.57 15.388   ~ 24 1
64 Z 13-41 GiG 12 01 55.6613003448 -01 04 09.439609008   15.37   14.090   ~ 52 1
65 Z 13-42 GiC 12 02 05.4128834160 +01 31 33.237313140   15.7   14.937   ~ 27 0
66 NGC 4045A GiG 12 02 42.6919113960 +01 57 07.928079552   15.2   14.163   ~ 44 0
67 2dFGRS TGN382Z186 GiC 12 03 44.3723992296 +01 50 09.588403284   14.72   14.295   ~ 36 0
68 LEDA 1195142 Sy2 12 04 01.9702928568 +01 26 41.547730920   18.35 17.56 15.568   ~ 21 0
69 NGC 4063 GiG 12 04 05.9833668312 +01 50 49.125591348   15.0   13.875   ~ 53 0
70 Z 13-57 GiG 12 04 20.0043502224 +01 34 03.461042496   14.6       ~ 47 0
71 NGC 4073 BiC 12 04 27.0598775760 +01 53 45.611893752   13.8 13.21 14.249   ~ 211 1
72 NGC 4139 GiG 12 04 34.0236330696 +01 48 05.682841740   14.804   13.584   ~ 50 0
73 NGC 4077 EmG 12 04 38.0614306968 +01 47 15.651824928   14.5       ~ 62 0
74 Z 13-73 GiG 12 05 40.6599186384 +01 35 36.605931648   15.3   14.564   ~ 36 0
75 2dFGRS TGN382Z030 GiC 12 06 39.3830221968 +01 17 03.293417436   16.139   14.970   ~ 21 0
76 2dFGRS TGN316Z102 LIN 12 08 44.2206319464 -00 32 26.819915280   16.005   14.737   ~ 19 0
77 Z 13-87 GiG 12 09 28.6560904824 +00 31 59.980292544   15.4       ~ 36 0
78 LEDA 3092520 EmG 12 09 35.2337168400 -00 54 44.925143436   16.378   15.111   ~ 15 0
79 SDSS J120952.72-003250.9 G 12 09 52.7260991880 -00 32 50.929747764   17.755   16.545   ~ 9 0
80 Z 13-89 GiG 12 09 53.8748371944 +00 55 42.341520396   15.31       ~ 49 1
81 LEDA 1131407 G 12 09 54.4540174104 -00 55 05.419353540   17.145   15.858   ~ 13 0
82 Z 13-92 EmG 12 10 17.8883347776 -00 31 04.412815968   15.3   14.277   ~ 39 0
83 Z 13-95 GiG 12 10 32.6070185808 +00 40 39.058675896   15.5   14.120   ~ 28 0
84 Z 13-94 G 12 10 35.5794940248 -00 10 17.383424196   15.5       ~ 33 0
85 Z 13-119 EmG 12 17 52.8740655552 -00 39 26.382327984   15.2       ~ 34 0
86 LEDA 1150319 G 12 18 10.9157475336 -00 09 49.283727336   17.48       ~ 13 0
87 2MASX J12184025-0015227 LIN 12 18 40.2217118592 -00 15 23.140391652   16.38       ~ 22 0
88 NGC 4262 GiG 12 19 30.5694336288 +14 52 39.517143276 13.00 12.49 11.55     ~ 378 1
89 Z 14-8 LIN 12 19 48.2682558456 -00 52 31.581389640   15.4       ~ 39 0
90 NGC 4283 GiG 12 20 20.7691223880 +29 18 39.154727556 13.47 13.00 12.07     ~ 209 1
91 LEDA 1193635 G 12 22 02.4287307288 +01 23 41.995914864   17.183   15.734   ~ 9 0
92 NGC 4342 GiP 12 23 39.0032044488 +07 03 14.359499100   13.0       ~ 337 0
93 NGC 4643 LIN 12 43 20.1435647088 +01 58 41.716062264   11.9       ~ 286 0
94 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
95 NGC 4660 GiP 12 44 31.9814021280 +11 11 25.739106972   12.1       ~ 434 0
96 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
97 NGC 5103 GiG 13 20 30.1029602496 +43 05 02.219249040   13.6       ~ 100 0
98 Z 18-51 rG 14 06 56.3747832240 -01 35 40.957148616   15.1   14.511   ~ 40 0
99 LEDA 184401 G 14 07 11.1068932920 -00 52 43.084136136   16.537   15.297   ~ 16 0
100 Z 18-53 rG 14 07 38.8695908040 -00 57 19.091372112   15.7   14.244   ~ 24 0
101 NGC 5478 EmG 14 08 08.5009043808 -01 42 08.325222768   14.7   13.474   ~ 53 0
102 NGC 5507 EmG 14 13 19.8600321120 -03 08 56.000082660   13.30 12.46     ~ 120 0
103 LEDA 1209407 G 14 13 52.0092382368 +01 53 41.919224712           ~ 9 0
104 Z 18-85 GiC 14 13 59.4363941280 +01 49 54.497510292   15.6       ~ 17 0
105 Z 18-86 G 14 14 02.3087838408 +01 50 52.385829900   15.5       ~ 22 0
106 LEDA 1201586 G 14 15 03.3081063408 +01 39 08.313235632           ~ 9 0
107 SDSS J141528.32+001338.3 G 14 15 28.3237444464 +00 13 38.416307088   17.49       ~ 15 0
108 Z 18-99 Sy1 14 16 30.8178185400 +01 37 08.028187716   17.84 17.26     ~ 39 0
109 2dFGRS TGN343Z180 Sy2 14 17 04.4489339280 +00 30 28.675825200   18.52 17.83 15.805   ~ 17 0
110 Z 18-107 EmG 14 17 27.9634295040 +00 28 57.972935316   15.6   14.734   ~ 25 0
111 Z 18-108 G 14 17 30.6524457072 +00 21 01.885874220   15.7       ~ 15 0
112 2MASX J14173150+0046178 LIN 14 17 31.4770108656 +00 46 17.914197720           ~ 14 0
113 Z 18-112 rG 14 17 49.8599453736 +00 30 39.401623440   15.5       ~ 26 0
114 LEDA 1162831 G 14 17 51.2660278080 +00 19 10.222574376   17.540   16.104   ~ 15 0
115 SDSS J141804.08+001625.7 G 14 18 04.0851908448 +00 16 25.766345316   17.40       ~ 17 0
116 LEDA 1187773 G 14 21 16.6468187568 +01 12 26.789705676   17.081   15.678   ~ 11 0
117 ZW VIII 406 G 14 23 00.9792116592 +00 47 39.662249676   17.4   15.018   ~ 16 0
118 Z 19-10 G 14 23 08.9420180472 +01 40 17.662515348   15.2   14.308   ~ 24 0
119 LEDA 1184622 G 14 23 28.1808020208 +01 06 07.465820904           ~ 15 0
120 Z 19-17 LIN 14 24 33.1731266904 +01 10 38.371534572   14.9   13.680   ~ 46 0
121 2MASX J14243732-0138201 LIN 14 24 37.3543912968 -01 38 20.073679692   16.42   15.10   ~ 23 0
122 Z 19-22 EmG 14 25 33.2276826000 -01 06 50.076908064   15.4       ~ 28 0
123 LEDA 3092559 G 14 25 55.0845438864 -01 28 17.132740536   17.111   15.821   ~ 14 0
124 LEDA 1124380 G 14 26 08.7810100512 -01 12 08.214506172   17.332   16.091   ~ 15 0
125 IC 1010 LIN 14 27 20.3613848112 +01 01 33.133704060   14.8       ~ 48 0
126 NVSS J142810-015638 rG 14 28 10.0449383592 -01 56 29.868761580   16.26   15.43   ~ 23 0
127 LEDA 184644 G 14 29 46.7906408400 +00 25 26.938395408   16.621   15.346   ~ 12 0
128 2MASX J14301252+0014030 LIN 14 30 12.4997406672 +00 14 02.760140256   16.87       ~ 22 0
129 UGC 9326 rG 14 30 43.0268051064 +00 15 10.222140024   15.5       ~ 41 1
130 Z 19-50 Sy1 14 30 46.0261075920 +00 14 51.629044956   18.30 17.59 14.980   ~ 31 0
131 LEDA 1108986 G 14 31 43.3845154848 -01 49 35.761112616   16.753   15.827   ~ 21 0
132 LEDA 1165243 G 14 32 08.4009670392 +00 24 39.960227844   16.789   15.811   ~ 21 0
133 Z 19-65 G 14 35 19.7197397568 +00 28 32.647017720   15.5   15.280   ~ 22 0
134 LEDA 159923 G 14 35 40.0765633032 +00 12 17.797901004   16.10       ~ 15 0
135 NGC 5680 G 14 35 44.5274859048 -00 00 48.093036588   15.4       ~ 20 0
136 LEDA 1151388 G 14 35 59.4820884744 -00 07 22.897113780   17.32       ~ 17 0
137 Z 192-59 AG? 14 46 21.127 +34 22 14.34   14.4       ~ 103 0
138 Z 20-15 EmG 14 46 48.6537479424 -01 57 31.075777332   15.7       ~ 28 0
139 2dFGRS TGN282Z186 LIN 14 47 33.1781473536 -01 38 44.349701316   16.312   15.325   ~ 25 0
140 LEDA 160196 LIN 14 51 02.9931374112 -00 31 37.522979148   16.898   15.699   ~ 24 0
141 LEDA 160199 G 14 51 03.9144150024 -00 27 43.992973404   16.683   15.376   ~ 20 0
142 Z 20-27 Sy2 14 52 11.0350487568 -00 15 21.960618264   17.78 17.06     ~ 33 0
143 NGC 5845 GiG 15 06 00.7823239488 +01 38 01.704838596   13.8 11.20 12.06 9.94 ~ 403 0
144 NGC 6149 LIN 16 27 24.2315841696 +19 35 49.852602960   14.8       ~ 63 0

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