2009MNRAS.393..628M

Query : 2009MNRAS.393..628M

2009MNRAS.393..628M - Mon. Not. R. Astron. Soc., 393, 628-640 (2009/February-3)

Bulge-disc decompositions and structural bimodality of Ursa Major cluster spiral galaxies.

McDONALD M., COURTEAU S. and TULLY R.B.

Abstract (from CDS):

We present bulge and disc (B/D) decompositions of existing K' surface brightness profiles for 65 Ursa Major (UMa) cluster spiral galaxies. This improves upon the disc-only fits of Tully et al. The 1996 disc fits were used by Tully & Verheijen for their discovery of the bimodality of structural parameters in the UMa cluster galaxies. It is shown that our new one-dimensional B/D decompositions yield disc structural parameters that differ only slightly from the basic fits of Tully et al. and evidence for structural bimodality of UMa galaxies is maintained. Our B/D software for the decomposition of one-dimensional surface brightness profiles of galaxies uses a non-linear minimization scheme to recover the best-fitting Sérsic bulge and the exponential disc while accounting for the possible presence of a compact nucleus and spiral arms and for the effects of seeing and disc truncations. In agreement with Tully & Verheijen, we find that the distribution of near-infrared disc central surface brightnesses is bimodal with an F-test confidence of 80 per cent. There is also strong evidence for a local minimum in the luminosity function at. A connection between the brightness bimodality and a dynamical bimodality, based on new Hi linewidths, is identified. The B/D parameters are presented in Table 1.

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

Journal keyword(s): galaxies: clusters: general - galaxies: evolution - galaxies: formation - galaxies: luminosity function, mass function - galaxies: statistics - galaxies: structure

Simbad objects: 70

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Number of rows : 70
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 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 1826 0
2 UGC 6399 AG? 11 23 23.2200537264 +50 53 33.503083728   14.9       ~ 108 0
3 UGC 6446 GiC 11 26 40.4656762968 +53 44 48.012539280   14.5       ~ 156 0
4 NGC 3726 GiG 11 33 21.1367545656 +47 01 45.280222428   11.11   10.02   ~ 354 0
5 NGC 3729 GiP 11 33 49.321 +53 07 31.79   12.2       ~ 206 1
6 NGC 3769 GiP 11 37 44.0727836208 +47 53 34.782808956   11.7       ~ 183 0
7 NGC 3782 GiG 11 39 20.680 +46 30 48.20   13.1       ~ 108 0
8 UGC 6667 GiC 11 42 26.309 +51 35 52.82   14.8       ~ 120 0
9 UGC 6713 AG? 11 44 24.918 +48 50 07.84   15.5       ~ 38 0
10 NGC 3870 GiG 11 45 56.634 +50 11 59.66   13.2       ~ 147 1
11 NGC 3877 GiG 11 46 07.782 +47 29 40.20   11.8       ~ 324 0
12 UGC 6773 AG? 11 48 00.48 +49 48 29.7   15.2       ~ 51 0
13 NGC 3893 GiP 11 48 38.207 +48 42 38.84   11.23 10.67     ~ 369 1
14 NGC 3896 GiP 11 48 56.382 +48 40 28.79   14.05 13.57     ~ 87 0
15 NGC 3906 AG? 11 49 40.496 +48 25 33.46   14.1       ~ 95 0
16 UGC 6805 AG? 11 50 12.187 +42 04 29.82   14.20       ~ 60 0
17 NGC 3913 AG? 11 50 38.9407040280 +55 21 13.894641396   14.2       ~ 159 0
18 NGC 3917 GiP 11 50 45.4481861760 +51 49 27.919475076   12.5       ~ 188 0
19 UGC 6818 AG? 11 50 46.9776888960 +45 48 26.384111676   14.6       ~ 82 0
20 UGC 6816 GiC 11 50 47.70 +56 27 21.1   15.1       ~ 71 0
21 NGC 3931 GiP 11 51 13.4504229480 +52 00 03.021500232   14.6       ~ 49 0
22 NGC 3928 AGN 11 51 47.6194275264 +48 40 59.261680020   13.1       ~ 174 0
23 UGC 6840 GiP 11 52 07.078 +52 06 28.57   15.6       ~ 59 0
24 NGC 3924 AG? 11 52 39.1580744976 +50 02 15.978510276   15.7       ~ 41 0
25 NGC 3938 GiG 11 52 49.4335936248 +44 07 14.697085116 10.80 10.90 10.38     ~ 533 1
26 NGC 3949 GiG 11 53 41.7311041896 +47 51 31.401451476   10.9       ~ 335 1
27 NGC 3953 GiG 11 53 49.0086582552 +52 19 36.475395312   11.08   9.71   ~ 359 0
28 UGC 6894 AG? 11 55 23.49432 +54 39 26.3880   15.6       ~ 51 0
29 NGC 3972 GiP 11 55 45.09048 +55 19 14.6460   13.14   11.94   ~ 217 1
30 NGC 3982 Sy1 11 56 28.1445516072 +55 07 30.859586652   12.20 11.70 11.18   ~ 550 1
31 UGC 6917 GiG 11 56 28.76784 +50 25 42.0132   14.0       ~ 137 0
32 NGC 3985 GiG 11 56 42.1288367760 +48 20 03.129462132   13.0       ~ 114 0
33 UGC 6923 GiC 11 56 49.526 +53 09 37.21   13.90   12.96   ~ 148 0
34 UGC 6922 AG? 11 56 52.142 +50 49 01.16   15.4       ~ 59 0
35 UGC 6930 EmG 11 57 17.3777198280 +49 17 00.669514488   14.2       ~ 129 0
36 M 109 GiG 11 57 35.9631479640 +53 22 29.006082336   10.94   9.57   ~ 457 0
37 UGC 6940 AG? 11 57 47.584 +53 14 04.03   16.27   15.59   ~ 37 0
38 NGC 3998 Sy2 11 57 56.1334044408 +55 27 12.922443432   11.64 12.10 10.09   ~ 643 2
39 UGC 6956 AG? 11 58 25.96 +50 55 03.4   17       ~ 63 0
40 NGC 4013 GiG 11 58 31.417 +43 56 49.28   12.4       ~ 423 1
41 IC 749 GiP 11 58 34.0447608696 +42 44 02.528915820   13.4 12.52     ~ 132 0
42 NGC 4010 GiG 11 58 37.991 +47 15 40.72   13.1       ~ 153 0
43 UGC 6969 LSB 11 58 47.248 +53 25 32.55   15.07   14.23   ~ 65 0
44 IC 750 AGN 11 58 52.2 +42 43 21   12.7 12.17     ~ 175 1
45 UGC 6983 GiC 11 59 08.734 +52 42 28.03   14.5       ~ 173 0
46 NGC 4026 GiP 11 59 25.0914676128 +50 57 41.951225700   12.17       ~ 268 0
47 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2165 1
48 NGC 4085 GiP 12 05 22.7304442992 +50 21 10.608113412   13.93 12.83     ~ 186 0
49 NGC 4088 GiP 12 05 34.2230093952 +50 32 21.064017876   11.2       ~ 407 1
50 UGC 7089 GiP 12 05 57.746 +43 08 36.08   14.40       ~ 112 1
51 NGC 4100 GiG 12 06 08.602 +49 34 56.32   11.7       ~ 252 0
52 UGC 7094 LSB 12 06 10.774 +42 57 20.85   15.6       ~ 60 0
53 NGC 4102 Sy2 12 06 23.0 +52 42 40   11.8       ~ 422 1
54 NGC 4111 GiP 12 07 03.1334091672 +43 03 56.345868252 12.07 11.63 10.74     ~ 335 1
55 NGC 4117 Sy2 12 07 46.1195809200 +43 07 34.818483864   14.04       ~ 167 1
56 NGC 4118 EmG 12 07 52.844 +43 06 40.26   15.7       ~ 23 0
57 NGC 4138 Sy2 12 09 29.8011417048 +43 41 06.864140004 12.46 12.29 11.32 10.82   ~ 410 1
58 NGC 4143 LIN 12 09 36.0679174440 +42 32 03.031963368   13.04 12.08     ~ 233 0
59 NGC 4157 GiP 12 11 04.365 +50 29 04.85 12.48 12.15 11.35     ~ 353 2
60 UGC 7218 AG? 12 12 56.61 +52 15 49.8   15.0       ~ 44 0
61 NGC 4183 GiG 12 13 16.860 +43 41 53.77   13.5       ~ 202 0
62 NGC 4218 GiP 12 15 46.1787155088 +48 07 52.628679084   13.2       ~ 90 0
63 NGC 4217 GiG 12 15 50.900 +47 05 30.44   12.4       ~ 300 2
64 NGC 4220 GiP 12 16 11.7271475400 +47 53 00.116701188   12.4       ~ 153 0
65 UGC 7301 GiC 12 16 42.081 +46 04 43.56   15.49       ~ 62 1
66 NGC 4346 GiG 12 23 27.9622537560 +46 59 37.642074396   12.3       ~ 112 0
67 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6642 0
68 IC 3355 GiP 12 26 51.4660256472 +13 10 22.890438804 14.94 15.18 14.86     ~ 108 1
69 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4798 2
70 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 409 0

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