2001A&A...372..406R

Query : 2001A&A...372..406R

2001A&A...372..406R - Astronomy and Astrophysics, volume 372, 406-426 (2001/6-3)

The impact of bars on the mid-infrared dust emission of spiral galaxies: global and circumnuclear properties.

ROUSSEL H., SAUVAGE M., VIGROUX L., BOSMA A., BONOLI C., GALLAIS P., HAWARDEN T., MADDEN S. and MAZZEI P.

Abstract (from CDS):

We study the mid-infrared properties of a sample of 69 nearby spiral galaxies, selected to avoid Seyfert activity contributing a significant fraction of the central energetics, or strong tidal interaction, and to have normal infrared luminosities. These observations were obtained with ISOCAM, which provides an angular resolution of the order of 10" (half-power diameter of the point spread function) and low-resolution spectro-imaging information. Between 5 and 18µm, we mainly observe two dust phases, aromatic infrared bands and very small grains, both out of thermal equilibrium. On this sample, we show that the global F15/F7 colors of galaxies are very uniform, the only increase being found in early-type strongly barred galaxies, consistent with previous IRAS studies. The F15/F7 excesses are unambiguously due to galactic central regions where bar-induced starbursts occur. However, the existence of strongly barred early-type galaxies with normal circumnuclear colors indicates that the relationship between a distortion of the gravitational potential and a central starburst is not straightforward. As the physical processes at work in central regions are in principle identical in barred and unbarred galaxies, and since this is where the mid-infrared activity is mainly located, we investigate the mid-infrared circumnuclear properties of all the galaxies in our sample. We show how surface brightnesses and colors are related to both the available molecular gas content and the mean age of stellar populations contributing to dust heating. Therefore, the star formation history in galactic central regions can be constrained by their position in a color-surface brightness mid-infrared diagram.

Abstract Copyright: ∼

Journal keyword(s): galaxies: spiral - galaxies: ISM - stars: formation - infrared: ISM: continuum - ISM: lines and bands

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 NGC 289 Sy2 00 52 42.365 -31 12 20.99   11.36 13.44 10.38 11.4 ~ 236 0
2 NGC 337 EmG 00 59 50.090 -07 34 40.66 11.97 12.06 11.61 12.4 12.2 ~ 278 1
3 NGC 613 AGN 01 34 18.235 -29 25 06.56   10.77 12.71 9.50 10.6 ~ 409 3
4 NGC 986 Sy1 02 33 34.3087856832 -39 02 42.128176704 11.72 11.74 10.91 10.10 11.3 ~ 183 1
5 NGC 1022 GiG 02 38 32.703 -06 40 38.60 12.33 12.09 11.34     ~ 203 1
6 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1342 3
7 NGC 1326 Sy1 03 23 56.3657298384 -36 27 52.322333040 11.69 11.43 10.54 10.02 10.9 ~ 265 1
8 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1802 2
9 IC 1953 GiG 03 33 41.885 -21 28 43.03   12.41   12.3 12.1 ~ 118 0
10 NGC 1385 EmG 03 37 28.323 -24 30 04.60 11.28 11.50 10.94 10.45 11.7 ~ 272 2
11 NGC 1433 Sy2 03 42 01.4847418992 -47 13 18.929092656   10.84 9.99 9.61 10.2 ~ 387 0
12 NGC 1530 AG? 04 23 27.102 +75 17 44.05   13.40       ~ 277 1
13 NGC 1672 SyG 04 45 42.552 -59 14 50.68 10.29 10.53 9.68 9.53 10.2 ~ 400 1
14 IC 2554 AG? 10 08 50.563 -67 01 51.07   12.43 13.20 11.24 11.9 ~ 64 0
15 ESO 317-23 Sy1 10 24 42.488 -39 18 21.38   13.96   12.27   ~ 46 1
16 NGC 3583 GiP 11 14 10.979 +48 19 06.16   11.6       ~ 203 1
17 NGC 3620 AG? 11 16 04.680 -76 12 58.74   15.9       ~ 75 1
18 NGC 3683 H2G 11 27 31.890 +56 52 36.15   12.7       ~ 187 0
19 NGC 3705 GiG 11 30 07.456 +09 16 35.87 12.00 11.86 11.07     ~ 174 1
20 NGC 3885 Sy2 11 46 46.4536031880 -27 55 20.056518516 12.19 12.68 11.89 11.46   ~ 129 1
21 NGC 4027 AG? 11 59 30.168 -19 15 54.62   11.71 11.10 10.60 11.5 ~ 244 1
22 NGC 4041 SyG 12 02 12.2376697152 +62 08 14.096124312   11.6       ~ 252 1
23 NGC 4102 Sy2 12 06 23.0 +52 42 40   11.8       ~ 422 1
24 NGC 4178 H2G 12 12 46.443 +10 51 57.59   12.9       ~ 351 0
25 M 98 LIN 12 13 48.2910686976 +14 54 01.953475200 11.25 10.95 10.14     ~ 481 1
26 NGC 4293 LIN 12 21 12.891 +18 22 56.64   11.6       ~ 291 2
27 NGC 4351 GiG 12 24 01.560 +12 12 18.09   13.5       ~ 224 0
28 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1340 2
29 NGC 4394 GiP 12 25 55.6366312872 +18 12 50.110707636   11.9       ~ 362 0
30 NGC 4413 GiP 12 26 32.2311385872 +12 36 38.426455080   13.6 12.25     ~ 238 1
31 NGC 4430 GiP 12 27 26.4060329472 +06 15 45.972776664   13.4       ~ 161 0
32 NGC 4438 LIN 12 27 45.6705493536 +13 00 31.708096380 11.37 11.02 10.17     ~ 636 2
33 NGC 4450 LIN 12 28 29.5910654016 +17 05 05.976112020   10.90 10.08     ~ 563 2
34 NGC 4491 GiG 12 30 57.1112012592 +11 29 00.698250624   13.50 12.55     ~ 156 1
35 NGC 4498 GiP 12 31 39.5627385744 +16 51 09.625381632   12.8       ~ 234 0
36 NGC 4506 GiG 12 32 10.5232013544 +13 25 10.824935016   13.63       ~ 115 1
37 NGC 4519 GiG 12 33 30.278 +08 39 16.06   12.8       ~ 279 0
38 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 616 0
39 NGC 4567 GiP 12 36 32.6979947472 +11 15 28.716262668 12.25 12.06 11.31     ~ 324 2
40 NGC 4568 GiP 12 36 34.292 +11 14 19.07   12.11 11.19     ~ 380 2
41 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 898 1
42 M 58 Sy2 12 37 43.5 +11 49 06 10.80 10.48 9.66     ~ 1078 2
43 NGC 4580 LIN 12 37 48.3754581432 +05 22 06.630315636   13.1       ~ 220 0
44 NGC 4633 GiP 12 42 37.3727566944 +14 21 25.949234160   14.7       ~ 140 0
45 NGC 4634 GiP 12 42 40.986 +14 17 45.15   13.6       ~ 179 0
46 NGC 4647 H2G 12 43 32.542 +11 34 56.89   12.5 12.5     ~ 407 0
47 NGC 4654 GiP 12 43 56.638 +13 07 34.86   11.8       ~ 567 1
48 NGC 4689 H2G 12 47 45.5568088416 +13 45 46.135889100   12.8       ~ 386 0
49 NGC 4691 AGN 12 48 13.60 -03 19 57.7 11.59 11.66 11.08 11.8 11.3 ~ 250 1
50 NGC 4713 GiG 12 49 57.8802780576 +05 18 40.933127196   12.3       ~ 304 0
51 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1386 2
52 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4329 4
53 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2572 2
54 NGC 5383 GiG 13 57 04.9709727768 +41 50 46.419238680   12.5   10.95   ~ 339 0
55 NGC 5430 EmG 14 00 45.820 +59 19 43.14   12.7       ~ 248 1
56 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2914 2
57 NGC 5744 EmG 14 43 55.854 -18 29 02.03   14.60   13.67   ~ 33 0
58 NGC 5786 GiG 14 58 56.254 -42 00 48.27   12   0.00   ~ 48 0
59 NGC 5937 Sy2 15 30 46.1177972544 -02 49 46.042511232   13.1       ~ 90 0
60 NGC 5962 GiP 15 36 31.6809457296 +16 36 27.933030504 12.04 11.98 11.34     ~ 249 1
61 NGC 6156 GiG 16 34 52.5448490040 -60 37 07.867951500   12.30   11.05 12.0 ~ 78 0
62 NGC 6744 GiG 19 09 46.1335950504 -63 51 26.897079024   9.28 8.25 8.08 9.6 ~ 275 0
63 NGC 6753 Sy2 19 11 23.635 -57 02 58.44   11.84 11.04 10.31 11.0 ~ 164 0
64 NGC 6824 GiG 19 43 40.7700366600 +56 06 34.012787400   13.1       ~ 69 0
65 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2527 2
66 NGC 7218 EmG 22 10 11.712 -16 39 39.60   12.4   11.48 12.3 ~ 107 0
67 NGC 7418 Sy1 22 56 36.1156121952 -37 01 47.845242192   11.66 11.39 10.66 11.3 ~ 165 1
68 NGC 7552 Sy1 23 16 10.66 -42 35 04.7 11.34 11.22 10.57 10.08 11.1 ~ 552 3
69 IC 5325 Sy2 23 28 43.4210245680 -41 19 59.690746920 11.80 11.89 11.27 10.73 11.5 ~ 105 1
70 NGC 7771 GiG 23 51 24.880 +20 06 42.57 13.42 13.08 12.25     ~ 338 4

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