2015MNRAS.453.1799D

Query : 2015MNRAS.453.1799D

2015MNRAS.453.1799D - Mon. Not. R. Astron. Soc., 453, 1799-1819 (2015/October-3)

The role of environment in the evolution of dwarf irregular galaxies: a comparison of UBVR and Hα photometry.

DUNN J.M.

Abstract (from CDS):

The star formation properties of 33 dwarf irregular galaxies that reside in differing local and global environments are investigated through UBVR and Hα photometry. Local environment is defined by the local galaxy number density, where high indicates at least one neighbour within 200 kpc and low indicates no neighbours within 1 Mpc. Global environment is classified as either field or group/cluster. Dwarf irregular galaxies are ideal candidates for a study on the role of environment in galaxy evolution due to their shallow gravitational potentials. Galaxies in local high-density environments are found to have brighter central and effective surface brightnesses, while those in global high-density environments have brighter absolute magnitudes, central and effective surface brightnesses, and higher star formation rates. However, no difference is seen among the different environments when considering star formation rates normalized by HI mass. Sérsic profiles were fit to the V- and R-band surface brightness profiles of the galaxies. No correlation exists between structural characteristics and environment. Most optical properties of dwarf irregular galaxies were found to be independent of environment, indicating that cluster membership and proximity to a neighbouring galaxy have no systematic long-term effects on the evolution of the objects in this study. Either environmental effects on dwarf galaxies are too sensitive to specific conditions for environmental trends to occur, or environmental influences result in a morphological evolution (e.g. dwarf irregular evolves to dwarf elliptical), which would not be apparent in a sample of only one morphological type.

Abstract Copyright: © 2015 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): galaxies: dwarf - galaxies: irregular - galaxies: photometry

Simbad objects: 73

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Number of rows : 73
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 IC 5377 AG? 00 02 05.40 +16 35 25.0   15.6       ~ 16 0
2 NAME Scl Group GrG 01 00 06 -33 44.2           ~ 526 0
3 MCG+00-04-043 LSB 01 13 40.450 +00 52 39.16   17       ~ 65 0
4 MCG+01-04-028 GiC 01 21 06.00 +05 25 42.0   17       ~ 17 0
5 LEDA 2807108 G 02 45 02.9 +32 09 42   17.0       ~ 8 0
6 UGC 2254 AG? 02 47 21.70 +37 31 31.0   17   16   ~ 9 0
7 LEDA 95590 AG? 04 22 32.930 +85 50 16.90   17.5       ~ 16 0
8 UGC 3234 AG? 05 03 24.58 +16 24 15.6   16.5       ~ 33 0
9 MCG+12-06-006 AG? 05 33 37.54 +73 43 26.3   17       ~ 32 0
10 UGC 3658 AG? 07 04 40.10 +17 35 00.0   17       ~ 17 0
11 UGC 3672 AG? 07 06 27.336 +30 19 23.61   17       ~ 43 0
12 UGC 3671 GiG 07 11 03.90 +78 24 12.4   17       ~ 10 0
13 LEDA 2807123 AG? 07 38 02.20 -01 30 14.7   16.5   16.4 16.7 ~ 7 0
14 MCG+09-13-052 AG? 07 46 56.363 +51 17 42.88   17       ~ 26 0
15 LEDA 2807125 G 08 06 12.8 +15 30 16   17.8       ~ 7 0
16 MCG+14-04-043 LSB 08 06 55.93079 +84 45 19.0136   16.0       ~ 17 0
17 LEDA 2807126 G 08 16 38.5 +69 20 49   18.2       ~ 7 0
18 UGC 4762 LSB 09 05 36.952 +45 19 20.69   18       ~ 22 0
19 LEDA 27427 PaG 09 37 47.60 +27 34 12.4   16.5       ~ 15 0
20 Z 364-12 AG? 09 40 04.2404 +82 06 22.976   15.7       ~ 31 1
21 Z 95-36 GiG 10 50 25.5402723480 +17 33 51.092678520   15.1       ~ 24 0
22 NGC 3447b GiP 10 53 29.656 +16 47 09.64   14.3       ~ 31 0
23 Z 95-68 GiG 10 55 29.110 +17 08 33.08   15.2       ~ 38 0
24 Z 155-45 AG? 11 01 48.340 +28 41 24.21   14.90       ~ 30 1
25 Z 39-109 GiG 11 18 08.726 +04 36 58.01   15.5       ~ 24 0
26 UGC 6599 GiC 11 37 42.314 +24 07 57.33   17       ~ 19 0
27 IC 718 AG? 11 39 52.762 +08 52 28.16   14.6       ~ 55 0
28 LEDA 36594 LSB 11 44 54.302 +02 09 46.98   17.6       ~ 20 0
29 Z 292-37 GiC 11 50 47.70 +56 27 21.1   15.1       ~ 75 0
30 Z 269-26 LSB 11 58 47.248 +53 25 32.55   15.07   14.23   ~ 70 0
31 NGC 4032 EmG 12 00 32.8335960456 +20 04 25.964376132   12.7       ~ 114 0
32 Z 315-5 GiP 12 01 44.304 +62 19 41.02   14.5       ~ 56 0
33 NGC 4080 GiG 12 04 51.804 +26 59 33.43   14.0       ~ 107 0
34 NGC 4190 LSB 12 13 44.765 +36 38 02.49 13.88 13.40 13.25 12.86   ~ 224 0
35 IC 3059 GiP 12 14 55.197 +13 27 41.01 14.78 14.70 14.19     ~ 100 1
36 LEDA 87148 LSB 12 28 04.807 +22 17 24.64   16.19       ~ 32 0
37 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
38 IC 3453 H2G 12 31 37.742 +14 51 35.23   15.2       ~ 97 0
39 Z 216-10 LSB 12 32 26.893 +42 42 14.84   13.7       ~ 130 0
40 MCG+07-26-029 LSB 12 35 11.596 +41 03 34.69   16.5       ~ 36 0
41 NGC 4809 GiP 12 54 51.06 +02 39 14.7   14.20       ~ 84 2
42 NGC 4810 GiP 12 54 51.4796706960 +02 38 16.213538760   14.8       ~ 67 1
43 Z 43-68 GiP 12 55 23.632 +07 54 33.51   15.3       ~ 49 0
44 UGC 8249 GiC 13 10 26.045 +24 55 22.90   17       ~ 27 0
45 UGC 8314 GiC 13 14 00.986 +36 19 07.91   15.93   15.12   ~ 25 0
46 MCG-01-34-014 EmG 13 18 41.1 -08 26 47   13.6   13.8 14.3 ~ 41 0
47 UGCA 354 LSB 13 24 48.392 +42 29 28.19   17       ~ 9 0
48 LEDA 2807019 G 14 13 33.2 +10 53 18           ~ 7 0
49 Z 75-42 AG? 14 28 10.8564899976 +13 33 05.727857832   15.1       ~ 39 0
50 UGC 9506 AG? 14 45 32.488 +31 24 55.81   18       ~ 22 0
51 Z 220-61 EmG 14 51 46.491 +43 38 42.17   14.9       ~ 29 0
52 LEDA 2801020 AG? 15 04 34.225 -02 35 13.10           ~ 10 0
53 MCG+08-29-022 AG? 15 55 19.55 +45 25 39.9   16.5       ~ 16 0
54 Z 167-20 LSB 16 04 37.703 +30 42 53.39   15.7       ~ 25 0
55 UGC 10229 AG? 16 09 43.960 -00 06 54.48   15.7   15.9 17.0 ~ 25 0
56 MCG+11-22-001 AG? 17 46 29.4682 +67 20 26.209   17       ~ 21 0
57 LEDA 2801038 G 17 59 00.6 +21 50 53           ~ 8 0
58 Z 340-42 AG? 18 15 00.15 +71 00 18.4   15.1       ~ 14 0
59 UGC 11220 AG? 18 23 25.50 +40 56 43.0   17       ~ 19 0
60 UGC 11382 AG? 18 53 57.74 +74 39 36.0   16.5       ~ 7 0
61 UGC 11400 LSB 19 00 25.67228 +79 02 22.8726   16.5       ~ 10 0
62 UGC 11458 AG? 19 35 08.2144 +69 59 42.222   17       ~ 10 0
63 MCG+09-32-017 AG? 19 48 34.95 +54 12 09.9   16.5       ~ 9 0
64 UGC 11813 LSB 21 47 31.26168 +22 09 49.9730   17       ~ 30 0
65 LEDA 2801061 G 22 11 57.4 +45 40 03           ~ 4 0
66 Z 514-45 GiG 22 30 33.98 +33 49 10.8   15.5       ~ 73 0
67 LEDA 2801065 AG? 23 20 11.16 +10 37 23.1           ~ 8 0
68 UGC 12549 AG? 23 21 53.54 +17 26 11.6   16.0       ~ 19 0
69 LEDA 87274 LSB 23 25 17.64 +12 42 55.9           ~ 9 0
70 UGC 12070 AG? 23 31 57.30 +78 09 02.9   16.5       ~ 10 0
71 Z 455-20 EmG 23 34 53.2111620216 +18 13 36.854769108   14.7       ~ 90 0
72 UGC 12771 AG? 23 45 32.70 +17 15 12.0   16.5       ~ 19 0
73 NAME Local Group GrG ~ ~           ~ 9325 0

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