2001A&A...372..427R


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.23CET00:42:02

2001A&A...372..427R - Astronomy and Astrophysics, volume 372, 427-437 (2001/6-3)

The relationship between star formation rates and mid-infrared emission in galactic disks.

ROUSSEL H., SAUVAGE M., VIGROUX L. and BOSMA A.

Abstract (from CDS):

The Hα and mid-infrared mean disk surface brightnesses are compared in a sample of nearby spirals observed by ISOCAM. This shows that, in spiral disks, dust emission at 7 and 15µm provides a reasonable star formation tracer. The fact that the 15 to 7µm flux ratio is nearly constant in various global exciting conditions indicates a common origin, namely the aromatic infrared band carriers, and implies that at these wavelengths, dust emission from the disks of normal galaxies is dominated by photodissociation regions and not by HII regions themselves. We use this newly-found correlation between the mid-infrared and the Hα line to investigate the nature of the link between the far-infrared (60 and 100µm) and Hα. Although the separation of the central regions from the disk is impossible to achieve in the far-infrared, we show that a circumnuclear contribution to the dust emission, having no equivalent counterpart in Hα, is most likely responsible for the well-known non-linearity between far-infrared and Hα fluxes in spiral galaxies. We derive a calibration of 7 and 15µm fluxes in terms of star formation rates from a primary calibration of Hα in the literature, and also outline the applicability limits of the proposed conversion, which should not be blindly extrapolated to objects whose nature is unknown.

Abstract Copyright:

Journal keyword(s): galaxies: spiral - galaxies: ISM - stars: formation - infrared: ISM

Simbad objects: 46

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Number of rows : 46

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 337 EmG 00 59 50.090 -07 34 40.66 11.97 12.06 11.61 12.4 12.2 ~ 233 1
2 NGC 986 EmG 02 33 34.349 -39 02 42.21 11.72 11.74 10.91 10.10 11.3 ~ 169 1
3 NGC 1022 GiG 02 38 32.703 -06 40 38.60 12.33 12.09 11.34     ~ 188 1
4 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1195 3
5 NGC 1326 GiG 03 23 56.397 -36 27 52.78 11.69 11.43 10.54 10.02 10.9 ~ 240 1
6 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1554 2
7 NGC 1385 EmG 03 37 28.323 -24 30 04.60 11.28 11.50 10.94 10.45 11.7 ~ 218 2
8 NGC 1433 GiG 03 42 01.553 -47 13 19.49   10.84 9.99 9.61 10.2 ~ 312 0
9 NGC 1530 G 04 23 27.102 +75 17 44.05   13.40       ~ 255 1
10 NGC 1672 SyG 04 45 42.552 -59 14 50.68 10.29 10.53 9.68 9.53 10.2 ~ 323 1
11 NGC 3885 EmG 11 46 46.509 -27 55 19.85 12.19 12.68 11.89 11.46   ~ 119 1
12 NGC 4027 IG 11 59 30.168 -19 15 54.62   11.71 11.10 10.60 11.5 ~ 229 1
13 NGC 4041 SyG 12 02 12.2373728821 +62 08 14.095878409   11.6       ~ 229 1
14 NGC 4102 LIN 12 06 23.115 +52 42 39.42   11.8       ~ 381 1
15 NGC 4178 H2G 12 12 46.443 +10 51 57.59   12.9       ~ 324 0
16 M 98 LIN 12 13 48.292 +14 54 01.69 11.25 10.95 10.14     ~ 451 1
17 NGC 4293 LIN 12 21 12.891 +18 22 56.64   11.6       ~ 257 2
18 NGC 4351 GiG 12 24 01.560 +12 12 18.09   13.5       ~ 197 0
19 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1212 2
20 NGC 4394 GiP 12 25 55.6370604801 +18 12 50.115665445   11.9       ~ 336 0
21 NGC 4413 GiP 12 26 32.2322973950 +12 36 38.412408309   13.6 12.25     ~ 213 1
22 NGC 4438 LIN 12 27 45.652 +13 00 30.92 11.37 11.02 10.17     ~ 585 3
23 NGC 4450 LIN 12 28 29.634 +17 05 05.82   10.90 10.08     ~ 516 1
24 NGC 4498 GiP 12 31 39.5598460639 +16 51 09.626835314   12.8       ~ 207 0
25 NGC 4519 GiG 12 33 30.278 +08 39 16.06   12.8       ~ 254 0
26 NGC 4535 H2G 12 34 20.310 +08 11 51.94   11.1       ~ 533 0
27 NGC 4567 GiP 12 36 32.701 +11 15 28.69 12.25 12.06 11.31     ~ 293 2
28 NGC 4568 GiP 12 36 34.292 +11 14 19.07   12.11 11.19     ~ 348 2
29 M 90 Sy2 12 36 49.816 +13 09 46.33 10.56 10.26 9.54     ~ 810 1
30 M 58 SyG 12 37 43.597 +11 49 05.12 10.80 10.48 9.66     ~ 984 2
31 NGC 4647 H2G 12 43 32.542 +11 34 56.89   12.5 12.5     ~ 382 0
32 NGC 4654 GiP 12 43 56.638 +13 07 34.86   11.8       ~ 508 1
33 NGC 4689 H2G 12 47 45.5568267764 +13 45 46.148221803   12.8       ~ 341 0
34 NGC 4691 AGN 12 48 13.60 -03 19 57.7 11.59 11.66 11.08 11.8 11.3 ~ 226 1
35 NGC 4713 GiG 12 49 57.8808487310 +05 18 40.927534284   12.3       ~ 277 0
36 M 94 SyG 12 50 53.148 +41 07 12.55 9.15 8.96 8.24 7.78   ~ 1241 3
37 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3873 4
38 M 83 SBG 13 37 00.919 -29 51 56.74 8.85 8.11 7.52 7.21   ~ 2269 2
39 NGC 5383 GiG 13 57 04.975 +41 50 46.60   12.5   10.95   ~ 315 0
40 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2586 2
41 NGC 5962 GiP 15 36 31.6808963190 +16 36 27.929023082 12.04 11.98 11.34     ~ 224 1
42 NGC 6744 GiG 19 09 46.099 -63 51 27.14   9.28 8.25 8.08 9.6 ~ 233 0
43 NGC 6753 GiG 19 11 23.635 -57 02 58.44   11.84 11.04 10.31 11.0 ~ 142 0
44 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2286 2
45 NGC 7218 EmG 22 10 11.712 -16 39 39.60   12.4   11.48 12.3 ~ 95 0
46 NGC 7552 GiP 23 16 10.767 -42 35 05.39 11.34 11.22 10.57 10.08 11.1 ~ 512 3

    Equat.    Gal    SGal    Ecl

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2021.01.23-00:42:02

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