2014A&A...571A..58C

Query : 2014A&A...571A..58C

2014A&A...571A..58C - Astronomy and Astrophysics, volume 571A58-58 (2014/11-1)

Evidence for the concurrent growth of thick discs and central mass concentrations from S4G imaging.

COMERON S., ELMEGREEN B.G., SALO H., LAURIKAINEN E., HOLWERDA B.W. and KNAPEN J.H.

Abstract (from CDS):

We have produced 3.6µm+4.5µm vertically integrated radial luminosity profiles of 69 edge-on galaxies from the Spitzer Survey of Stellar Structure in Galaxies (S4G). We decomposed the luminosity profiles into a disc and a central mass concentration (CMC). These fits, combined with thin/thick disc decompositions from our previous studies, allow us to estimate the masses of the CMCs, the thick discs, and the thin discs (MCMC, MT, and MT). We obtained atomic disc masses (Mg) from the literature. We then consider the CMC and the thick disc to be dynamically hot components and the thin disc and the gas disc to be dynamically cold components. We find that the ratio between the mass of the hot components and that of the cold components, (MCMC+MT)/(Mt+Mg), does not depend on the total galaxy mass as described by circular velocities (vc). We also find that the higher the vc, the more concentrated the hot component of a galaxy. We suggest that our results are compatible with having CMCs and thick discs built in a short and early high star forming intensity phase. These components were born thick because of the large scale height of the turbulent gas disc in which they originated. Our results indicate that the ratio between the star forming rate in the former phase and that of the formation of the thin disc is of the order of 10, but the value depends on the duration of the high star forming intensity phase.

Abstract Copyright: ∼

Journal keyword(s): galaxies: evolution - galaxies: bulges - galaxies: spiral - galaxies: statistics

Simbad objects: 71

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Number of rows : 71
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 1553 EmG 00 32 40.115 -25 36 27.10   14.31   13.49 14.1 ~ 68 0
2 Z 459-41 AG? 01 21 47.793 +17 35 32.58   14.7       ~ 105 1
3 NGC 489 GiG 01 21 53.8903648440 +09 12 23.863254300   13.4       ~ 85 0
4 NGC 522 GiG 01 24 45.85467 +09 59 40.6430   14.2       ~ 113 0
5 IC 1711 AG? 01 30 55.267 +17 11 18.54   14.8       ~ 82 0
6 NGC 678 Sy2 01 49 24.8433327288 +21 59 50.210239596   13.3       ~ 125 0
7 MCG-03-06-016 Sy2 02 12 54.643 -19 19 00.90   15.44   14.22   ~ 70 0
8 IC 217 EmG 02 16 10.436 -11 55 36.13   16.52   12.90 13.6 ~ 71 0
9 Z 483-69 AG? 02 29 54.020 +25 15 23.08   15.3       ~ 67 0
10 NGC 1032 AG? 02 39 23.6373 +01 05 37.652   13.2       ~ 102 1
11 NGC 1163 Sy2 03 00 22.089 -17 09 09.10   14.70   14.0 13.5 ~ 76 0
12 IC 1913 EmG 03 19 34.578 -32 27 54.41   14.38   13.54 14.2 ~ 81 0
13 NGC 1422 EmG 03 41 31.064 -21 40 53.38   13.99   12.93   ~ 85 0
14 MCG-02-10-009 Sy2 03 42 56.065 -12 54 59.10   14.10   13.6 13.0 ~ 80 0
15 NGC 1495 EmG 03 58 21.805 -44 27 58.50   13.28   12.38 12.7 ~ 63 0
16 IC 2058 EmG 04 17 54.3720552624 -55 55 57.738342360   13.90   12.94 13.2 ~ 100 2
17 NGC 1596 GiP 04 27 38.1079224792 -55 01 39.852944076   12.01 10.97 10.54   ~ 121 0
18 ESO 157-49 GiG 04 39 36.883 -53 00 45.54   14.37   13.30 13.4 ~ 77 0
19 IC 2135 EmG 05 33 12.894 -36 23 55.69   13.27   12.11 12.3 ~ 84 2
20 NGC 2732 GiP 09 13 24.6918628128 +79 11 14.150547096   12.6       ~ 77 0
21 MCG-02-25-020 Sy1 09 50 13.9786153944 -12 03 28.025313120   14   13.60   ~ 59 0
22 Z 36-8 AG? 09 57 16.525 +04 31 37.06   15.0       ~ 57 0
23 NGC 3098 GiG 10 02 16.6969955520 +24 42 39.887384724   13.00       ~ 143 0
24 MCG-02-27-001 Sy2 10 25 26.492 -15 20 57.25   15   13.96   ~ 47 0
25 IC 610 H2G 10 26 28.363 +20 13 41.71   14.8       ~ 89 0
26 Z 333-34 AG? 10 30 45.846 +73 53 07.41   15.4       ~ 54 0
27 NAME Great Attractor SCG 10 32 -46.0           ~ 617 0
28 NGC 3279 GiG 10 34 42.792 +11 11 50.08   14.10       ~ 110 0
29 Z 155-28 GiP 10 51 15.802 +27 50 54.88   15.6       ~ 73 0
30 MCG-02-28-016 AG? 10 51 23.119 -10 08 00.27   15   14.87   ~ 28 0
31 NGC 3454 GiP 10 54 29.458 +17 20 38.58   14.1       ~ 123 0
32 NGC 3501 GiP 11 02 47.307 +17 59 22.31   13.8       ~ 152 0
33 NGC 3592 GiG 11 14 27.242 +17 15 36.73   14.8       ~ 86 0
34 NGC 3600 H2G 11 15 51.980 +41 35 28.96   12.6       ~ 124 0
35 NGC 3628 LIN 11 20 17.018 +13 35 22.16   10.42 9.48 9.22   ~ 853 3
36 Z 185-81 GiG 11 32 39.346 +35 19 42.44   14.1       ~ 60 0
37 MCG-05-28-015 EmG 11 53 24.064 -28 33 11.39   13.19   12.11 12.5 ~ 74 0
38 NGC 4081 GiG 12 04 33.933 +64 26 12.42   13.6       ~ 73 1
39 Z 352-18 GiG 12 05 56.118 +77 30 18.27   15.4       ~ 64 0
40 NGC 4111 LIN 12 07 03.1334091672 +43 03 56.345868252 12.07 11.63 10.74     ~ 350 1
41 NGC 4330 GiG 12 23 17.249 +11 22 04.73   14.0       ~ 246 0
42 NGC 4359 GiG 12 24 11.060 +31 31 17.78   13.9       ~ 122 0
43 NGC 4437 AGN 12 32 45.586 +00 06 54.14   11.1   11.1 10.6 ~ 307 0
44 NGC 4565 Sy2 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 991 0
45 NGC 4607 GiC 12 41 12.407 +11 53 11.86   14.7       ~ 184 0
46 NGC 4747 GiP 12 51 45.592 +25 46 30.12   13.2       ~ 178 1
47 MCG-05-31-009 EmG 12 59 45.894 -29 36 00.98   14.45   13.30 13.9 ~ 81 0
48 NGC 5084 Sy2 13 20 16.923 -21 49 39.28   11.15 12.21 9.84 10.5 ~ 192 1
49 Z 317-8 G 13 48 16.707 +68 05 06.05   14.8       ~ 56 0
50 NGC 5470 GiG 14 06 31.999 +06 01 45.86   14.5       ~ 80 0
51 NGC 5529 GiP 14 15 34.226 +36 13 37.12   12.9       ~ 164 2
52 Z 273-22 AG? 14 38 59.227 +51 07 14.69   15.3       ~ 68 0
53 MCG-03-38-008 EmG 14 47 24.170 -17 26 44.05   13.3   12.47 12.8 ~ 78 1
54 Z 248-45 GiP 15 01 32.450 +48 19 11.65   14.9       ~ 103 0
55 NGC 5981 GiG 15 37 53.5014542688 +59 23 30.529061988   14.2       ~ 110 0
56 Z 136-84 GiP 15 48 41.188 +21 52 09.79   14.80       ~ 113 1
57 NGC 6010 AG? 15 54 19.1553713880 +00 32 34.949952168   13.3       ~ 94 0
58 IC 1197 AG? 16 08 17.292 +07 32 18.79   14.7       ~ 75 0
59 Z 23-26 AG? 16 14 24.804 -00 12 27.14   13.5   13.4 12.9 ~ 125 0
60 Z 108-169 LSB 16 15 28.810 +18 54 17.42   15.0       ~ 92 0
61 MCG-05-51-021 EmG 21 54 22.866 -31 58 09.00   15.35   14.04   ~ 42 1
62 MCG-05-52-050 GiC 22 14 03.018 -26 56 15.77   14.21   13.00 13.4 ~ 87 0
63 IC 5176 Sy2 22 14 55.928 -66 50 57.88   13.54   11.97 12.4 ~ 109 0
64 NGC 7347 AG? 22 39 56.162 +11 01 39.22   14.7       ~ 58 0
65 MCG-07-46-011 EmG 22 48 33.845 -39 38 56.41   14.61   13.60   ~ 65 0
66 MCG-05-54-016 EmG 23 08 55.613 -30 51 28.43   14.75   13.75 14.2 ~ 74 1
67 Z 406-71 GiP 23 20 12.781 +07 55 55.62   15.7       ~ 66 0
68 Z 455-23 AG? 23 35 43.0340000304 +20 17 20.722553340   15.6       ~ 47 0
69 ESO 240-11 EmG 23 37 49.4188489776 -47 43 38.430144948   13.05   11.69 12.3 ~ 122 1
70 ESO 292-14 Sy2 23 42 35.237 -44 54 17.46   13.97   12.85 13.3 ~ 62 0
71 Z 382-7 AG? 23 56 47.527 +01 21 18.36   14.70   14.1 13.6 ~ 100 0

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