2014ApJ...786..105J

Query : 2014ApJ...786..105J

2014ApJ...786..105J - Astrophys. J., 786, 105 (2014/May-2)

A near-infrared census of the multicomponent stellar structure of early-type dwarf galaxies in the Virgo cluster.

JANZ J., LAURIKAINEN E., LISKER T., SALO H., PELETIER R.F., NIEMI S.-M., TOLOBA E., HENSLER G., FALCON-BARROSO J., BOSELLI A., DEN BROK M., HANSSON K.S.A., MEYER H.T., RYS A. and PAUDEL S.

Abstract (from CDS):

The fraction of star-forming to quiescent dwarf galaxies varies from almost infinity in the field to zero in the centers of rich galaxy clusters. What is causing this pronounced morphology-density relation? What do quiescent dwarf galaxies look like when studied in detail, and what conclusions can be drawn about their formation mechanism? Here we study a nearly magnitude-complete sample (-19 < Mr< -16 mag) of 121 Virgo cluster early types with deep near-infrared images from the SMAKCED project. We fit two-dimensional models with optional inner and outer components, as well as bar and lens components (in ∼15% of the galaxies), to the galaxy images. While a single Sérsic function may approximate the overall galaxy structure, it does not entirely capture the light distribution of two-thirds of our galaxies, for which multicomponent models provide a better fit. This fraction of complex galaxies shows a strong dependence on luminosity, being larger for brighter objects. We analyze the global and component-specific photometric scaling relations of early-type dwarf galaxies and discuss similarities with bright early and late types. The dwarfs' global galaxy parameters show scaling relations that are similar to those of bright disk galaxies. The inner components are mostly fitted with Sérsic n values close to 1. At a given magnitude, they are systematically larger than the bulges of spirals, suggesting that they are not ordinary bulges. We argue that the multicomponent structures in early-type dwarfs are mostly a phenomenon inherent to the disks and may indeed stem from environmental processing.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: individual: Virgo Cluster - galaxies: dwarf - galaxies: elliptical and lenticular, cD - galaxies: photometry - galaxies: structure

Simbad objects: 127

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Number of rows : 127
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2154 2
2 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 1824 0
3 IC 3019 GiG 12 09 22.257 +13 59 32.73   15.0       ~ 109 0
4 IC 3025 GiG 12 10 23.189 +10 11 18.62   15.3       ~ 82 0
5 IC 3032 GiG 12 11 07.764 +14 16 30.17   15.3       ~ 82 0
6 IC 3065 GiG 12 15 12.5592175920 +14 25 58.469336508   14.7       ~ 98 0
7 2MASX J12155329+1312568 GiP 12 15 53.2793735184 +13 12 57.061927656   15.4       ~ 37 0
8 IC 3077 GiG 12 15 56.356 +14 26 00.87   15.4       ~ 81 0
9 LEDA 39264 GiG 12 16 00.405 +08 12 08.04   15.4       ~ 24 0
10 IC 3081 AG? 12 16 09.0661264512 +12 41 28.641852744   15.60       ~ 31 0
11 MCG+02-31-076 GiG 12 16 33.691 +13 01 52.48   15.2       ~ 70 0
12 IC 3096 GiP 12 16 52.493 +14 30 52.04   15.4       ~ 48 0
13 IC 3097 AG? 12 17 01.1061950928 +09 24 27.173437596   15.3       ~ 37 0
14 IC 3100 LSB 12 17 05.5511674632 +12 17 23.435069208   15.3       ~ 48 0
15 UGC 7314 AG? 12 17 14.5186599720 +08 56 32.079967476   15.5       ~ 29 0
16 IC 3101 LSB 12 17 19.6485543456 +11 56 36.472097652   15.5       ~ 72 0
17 IC 3131 AG? 12 18 50.9006616648 +07 51 43.066744308   14.8       ~ 66 0
18 MCG+02-31-089 GiP 12 19 01.9785829056 +13 58 56.837216748   17       ~ 24 0
19 IC 781 GiG 12 20 03.2942086416 +14 57 41.415572916   14.8       ~ 64 0
20 IC 3167 AG? 12 20 18.812 +09 32 41.19   15.1       ~ 41 0
21 UGC 7399 A GiG 12 20 48.7985405736 +17 29 13.991194464   15.1       ~ 94 0
22 IC 783 GiG 12 21 38.7938497416 +15 44 42.338292540   14.60     12.6 ~ 96 1
23 UGC 7425 GiC 12 21 53.7023560944 +15 38 45.155705424   16.5       ~ 43 1
24 NGC 4306 GiP 12 22 04.087 +12 47 13.96   14.4       ~ 107 0
25 UGC 7436 GiP 12 22 19.530 +14 45 38.11   15.2       ~ 130 0
26 2MASX J12224115+0757011 GiG 12 22 41.1481852272 +07 57 01.205409312   15.3       ~ 60 0
27 NGC 4318 GiG 12 22 43.2906579576 +08 11 53.850831504   14.1       ~ 132 0
28 NGC 4322 GiC 12 23 01.7282031936 +15 54 20.021975496   14.81 13.94     ~ 88 1
29 NGC 4328 GiG 12 23 20.0385680184 +15 49 13.327474224   14.04       ~ 89 1
30 NGC 4352 GiG 12 24 05.0220445416 +11 13 05.086056576   14.0       ~ 162 0
31 NGC 4366 GiG 12 24 47.0076210312 +07 21 10.906378848   15.2       ~ 43 0
32 IC 3292 GiG 12 24 48.3555488664 +18 11 42.410950008   15.5       ~ 86 0
33 2MASX J12244955+0645343 GiG 12 24 49.5642286944 +06 45 34.373655792   15.5       ~ 31 0
34 NGC 4370 GiG 12 24 54.932 +07 26 40.44 16.09 15.59 13.84     ~ 142 0
35 LEDA 40453 AG? 12 25 02.9804086512 +07 30 13.663229616   15.77       ~ 22 0
36 IC 3305 GiG 12 25 14.5000274376 +11 50 58.592846544   15.12       ~ 46 1
37 IC 3303 GiG 12 25 15.1991817360 +12 42 52.784461080   15.1 14.24   13.29 ~ 78 0
38 UGC 7504 GiC 12 25 21.618 +16 25 46.87   16.0       ~ 41 0
39 LEDA 40547 GiP 12 25 35.976 +15 50 52.05   15.56       ~ 28 0
40 IC 3313 GiP 12 25 36.428 +15 49 47.32   15.6       ~ 31 0
41 IC 3328 GiP 12 25 57.9238048368 +10 03 13.552350912   14.9       ~ 158 0
42 IC 3331 GiG 12 26 05.3131857288 +11 48 43.968612492   15.2       ~ 47 0
43 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6639 0
44 IC 3344 GiG 12 26 32.3896963032 +13 34 43.544246304   15.2       ~ 64 0
45 LEDA 40707 GiC 12 26 33.2021330472 +12 44 34.700132004   16.2 15.10   13.80 ~ 45 0
46 NGC 4415 GiG 12 26 40.4842511880 +08 26 08.595255480   14.2       ~ 112 0
47 IC 3349 GiG 12 26 47.0630055600 +12 27 14.345391348   15.3 13.98   12.95 ~ 84 0
48 IC 3358 GiG 12 26 54.423 +11 39 48.84   14.28 13.52   12.30 ~ 73 1
49 LEDA 40759 AG? 12 26 54.552 +10 39 57.09   16       ~ 36 0
50 IC 3369 GiG 12 27 16.9345517640 +16 01 28.169699412   15.1       ~ 54 0
51 NGC 4431 GiP 12 27 27.3817521552 +12 17 25.041554808 14.17 13.74 12.89     ~ 163 2
52 NGC 4436 GiP 12 27 41.2343736168 +12 18 57.193481304 14.20 13.91 12.98     ~ 129 1
53 UGC 7580 GiG 12 27 54.8304258888 +08 05 25.375209180   15.2 14.72     ~ 74 0
54 IC 794 GiG 12 28 08.6096744256 +12 05 35.874205512   14.07 13.44   12.39 ~ 112 1
55 IC 3383 GiG 12 28 12.3076321056 +10 17 51.446913720   15.5 15.18     ~ 85 0
56 IC 3381 LSB 12 28 14.8698618648 +11 47 23.359165728   14.42       ~ 165 1
57 IC 3388 GiG 12 28 28.0533797328 +12 49 25.325894568   15.4 14.73   13.73 ~ 70 0
58 IC 3393 GiG 12 28 41.7047406696 +12 54 57.265958916   14.85 14.24   13.19 ~ 109 1
59 LEDA 41098 GiC 12 28 58.1374397568 +12 39 42.236467668   16.06 15.24   13.93 ~ 35 0
60 LEDA 41130 AG? 12 29 14.6499081360 +07 52 39.046838556   16       ~ 31 0
61 NGC 4464 GiG 12 29 21.2937802368 +08 09 23.807609316   13.5       ~ 232 0
62 IC 3413 GiG 12 29 22.5171098280 +11 26 01.955382504   15.2       ~ 77 0
63 GRDG +12 52 GiC 12 29 23.5156350432 +12 27 02.909896992   16 15.29   14.16 ~ 92 0
64 NGC 4468 GiG 12 29 30.8923184328 +14 02 56.679822852   14.2       ~ 133 0
65 2MASX J12300506+0804241 G 12 30 05.0700348600 +08 04 23.971869048   16.82 15.13     ~ 76 0
66 NGC 4482 GiG 12 30 10.3245430152 +10 46 46.088237784   14.2       ~ 169 0
67 NGC 4479 GiG 12 30 18.3716396496 +13 34 39.522722196 13.73 13.40 12.44     ~ 184 2
68 UGCA 283 GiG 12 30 31.985 +12 29 24.85   14.5       ~ 413 0
69 IC 3435 GiC 12 30 39.792 +15 07 47.29   15.7       ~ 33 0
70 IC 3437 GiC 12 30 45.9003093456 +11 20 35.375795700   15.5       ~ 54 0
71 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7189 3
72 IC 3443 GiC 12 31 15.7337529840 +12 19 54.408896940   16.15 14.95   13.74 ~ 70 0
73 IC 3442 GiG 12 31 20.1836306184 +14 06 54.669163572   15.4       ~ 105 0
74 IC 3457 GiG 12 31 51.3438999336 +12 39 25.148930292   14.69 14.56   13.58 ~ 92 1
75 IC 3459 GiG 12 31 56.038 +12 10 26.10   14.83     13.4 ~ 52 1
76 IC 3461 GiG 12 32 02.747 +11 53 23.16   15.4 14.88   13.3 ~ 127 0
77 IC 3468 GiG 12 32 14.2119323256 +10 15 05.173970472   14.6       ~ 136 0
78 IC 3470 GiP 12 32 23.353 +11 15 47.56   15.0       ~ 116 0
79 IC 798 GiG 12 32 33.4026417888 +15 24 55.432700280   15.3       ~ 99 0
80 IC 3478 GiG 12 32 44.1866400432 +14 11 46.256511372   15.0       ~ 57 1
81 NGC 4515 GiG 12 33 04.9652329656 +16 15 55.889535096   13.3       ~ 147 0
82 NGC 4516 GiG 12 33 07.5371910504 +14 34 29.746318476   13.9       ~ 85 0
83 IC 3487 GiG 12 33 13.601 +09 23 49.76   15.1       ~ 79 0
84 IC 3486 GiG 12 33 14.026 +12 51 27.77   15.3       ~ 56 1
85 IC 3492 GiC 12 33 19.772 +12 51 12.77   15 15.30     ~ 90 0
86 Z 70-165 AG? 12 33 24.706 +08 41 26.69   15.58       ~ 27 0
87 VCC 1512 GiC 12 33 34.6393912344 +11 15 42.734036952           ~ 60 1
88 LEDA 41726 G 12 33 37.7 +07 52 21   15.93       ~ 31 0
89 IC 3499 GiG 12 33 44.9919553104 +10 59 44.614881240   14.5       ~ 65 0
90 IC 3501 GiG 12 33 51.6142478304 +13 19 20.832571596   15.0       ~ 98 0
91 IC 3509 GiG 12 34 11.5324571232 +12 02 56.163023196   15.3       ~ 114 0
92 IC 3510 GiG 12 34 14.8201884552 +11 04 17.432673708   15.2       ~ 63 0
93 IC 3518 GiG 12 34 31.291 +09 37 24.36   15.3       ~ 49 0
94 IC 3540 GiG 12 35 27.2277280584 +12 45 00.945699012   14.8       ~ 64 0
95 2MASX J12353723+1222554 GiP 12 35 37.2512550384 +12 22 55.234598772   15.41       ~ 94 0
96 IC 3578 GiG 12 36 39.412 +11 06 06.75   15.1       ~ 49 0
97 IC 3586 GiG 12 36 54.858 +12 31 12.49   15.3       ~ 104 0
98 IC 3602 GiG 12 38 07.097 +10 04 57.22   15.5       ~ 82 0
99 LEDA 42203 LSB 12 38 08.20 +16 04 18.1           ~ 12 0
100 IC 3612 AG? 12 39 04.6894168320 +14 43 45.543873900   15.4       ~ 73 0
101 NGC 4598 GiG 12 40 11.9356455312 +08 23 01.483673064   14.1       ~ 66 0
102 IC 3635 GiG 12 40 13.334 +12 52 29.98   15.5       ~ 81 0
103 IC 3637 AG? 12 40 19.566 +14 42 53.99   15.6       ~ 32 0
104 Z 99-108 AG? 12 40 19.6847934264 +15 56 06.912529044   14.9       ~ 68 0
105 IC 3647 GiG 12 40 52.6818722640 +10 28 35.428593144   15.3       ~ 71 0
106 IC 3652 GiG 12 40 58.5602846328 +11 11 04.080925212   15.1       ~ 115 0
107 IC 3653 GiG 12 41 15.7273825296 +11 23 13.997694300   14.7       ~ 114 0
108 IC 3658 LSB 12 41 20.6339756904 +14 42 02.014377660   15.5       ~ 45 0
109 IC 3665 GiG 12 41 46.0483203240 +11 29 19.184448192   15.3       ~ 41 0
110 UGC 7854 AG? 12 41 51.987 +09 24 10.20   15.3       ~ 76 0
111 UGC 7857 GiG 12 41 54.284 +13 46 22.38   15.3       ~ 30 0
112 Z 70-221 AG? 12 41 54.6006433776 +09 35 04.532490168   15.3       ~ 40 0
113 NGC 4620 GiG 12 41 59.3482988376 +12 56 34.244877840   14.0       ~ 88 0
114 IC 3672 GiG 12 42 08.6673855720 +11 45 15.438923748   15.1       ~ 111 0
115 IC 810 GiG 12 42 09.0797376720 +12 35 48.515221536   14.7     12.2 ~ 56 0
116 NGC 4637 GiP 12 42 54.0994401288 +11 26 17.684446848   16.0       ~ 33 1
117 2MASX J12425631+0340355 GiG 12 42 56.3359175976 +03 40 35.752436760   15.1       ~ 51 0
118 NGC 4640 GiG 12 42 57.7690185600 +12 17 13.056430128   15.2     12.5 ~ 55 0
119 IC 3720 GiC 12 44 46.522 +12 04 00.81   16.0     14.1 ~ 46 0
120 IC 3727 GiC 12 45 05.664 +10 54 03.13   15.6       ~ 40 0
121 IC 3735 AG? 12 45 20.4211125864 +13 41 33.601364304   15.1       ~ 91 0
122 UGC 7942 AG? 12 46 38.2580612064 +09 18 26.162289540   15.6       ~ 27 0
123 IC 3773 GiG 12 47 15.2968038432 +10 12 12.944157012   14.3       ~ 131 0
124 IC 3779 GiG 12 47 20.281 +12 09 59.58   15.5     13.3 ~ 81 0
125 LEDA 43309 AG? 12 48 58.423 +10 35 11.84   16       ~ 18 0
126 LEDA 43436 AG? 12 50 14.4652582032 +10 32 24.142824888   15.6       ~ 21 0
127 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4797 2

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