2004A&A...417...39M


Query : 2004A&A...417...39M

2004A&A...417...39M - Astronomy and Astrophysics, volume 417, 39-50 (2004/4-1)

Dust masses and star formation in bright IRAS galaxies. Application of a physical model for the interpretation of FIR observations.

MISIRIOTIS A., PAPADAKIS I.E., KYLAFIS N.D. and PAPAMASTORAKIS J.

Abstract (from CDS):

We address the problem of modeling the far-infrared (FIR) spectrum and deriving the star-formation rate (SFR) and the dust mass of spiral galaxies. We use the realistic physical model of Popescu et al. (2000A&A...362..138P) to describe the overall ultra-violet (UV), optical and FIR spectral energy distribution (SED) of a spiral galaxy. The model takes into account the 3-dimensional old and young stellar distributions in the bulge and the disk of a galaxy, together with the dust geometry. The geometrical characteristics of the galaxy and the intrinsic optical and near-infrared spectra are determined by the galaxy's observed K-band photometry. The UV part of the spectrum is assumed to be proportional to the SFR through the use of population synthesis models. By solving the radiative transfer equation, we are able to determine the absorbed energy, the dust temperature and the resulting FIR spectrum. The model has only three free parameters: SFR, dust mass, and the fraction of the UV radiation which is absorbed locally by dense dust in the HII regions. Using this model, we are able to fit well the FIR spectra of 62 bright IRAS galaxies from the ``SCUBA Local Universe Galaxy Survey" of Dunne et al. (2000MNRAS.315..115D). As a result, we are able to determine, among others, their SFR and dust mass. We find that, on average, the SFR (in absolute units), the star-formation efficiency, the SFR surface density and the ratio of FIR luminosity over the total intrinsic luminosity, are larger than the respective values of typical spiral galaxies of the same morphological type. We also find that the mean gas-to-dust mass ratio is close to the Galactic value, while the average central face-on optical depth of these galaxies in the V band is 2.3. Finally, we find a strong correlation between SFR or dust mass and observed FIR quantities like total FIR luminosity or FIR luminosity at 100 and 850µm. These correlations yield well-defined relations, which can be used to determine a spiral galaxy's SFR and dust-mass content from FIR observations.

Abstract Copyright:

Journal keyword(s): dust, extinction - galaxies: stellar content - galaxies: ISM - infrared: galaxies

Simbad objects: 63

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Number of rows : 63
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 23 G 00 09 53.411 +25 55 25.46   12.5       ~ 299 3
2 UGC 556 GiG 00 54 50.2180539288 +29 14 48.170620788   15.3       ~ 86 0
3 NGC 470 GiP 01 19 44.8526263032 +03 24 36.027176544 12.63 12.53 11.78     ~ 266 1
4 UGC 903 G 01 21 47.793 +17 35 32.58   14.7       ~ 85 0
5 NGC 520 IG 01 24 35.071 +03 47 32.68 12.41 12.24 11.42     ~ 503 3
6 NGC 697 GiG 01 51 17.568 +22 21 28.69   12.7       ~ 113 0
7 NGC 716 G 01 52 59.6547585288 +12 42 30.693406572   14.0       ~ 81 0
8 UGC 1451 GiG 01 58 30.030 +25 21 36.13   14.3       ~ 67 0
9 NGC 772 GiP 01 59 19.5557148984 +19 00 27.475677216 11.35 11.09 10.31 10.23 9.38 ~ 316 1
10 NGC 877 LSB 02 17 59.6453041536 +14 32 38.215857696   12.5       ~ 166 1
11 NGC 958 EmG 02 30 42.8187658032 -02 56 20.526742608   13.0   11.81 12.4 ~ 142 0
12 NGC 992 GiG 02 37 25.491 +21 06 03.04   13.5       ~ 125 1
13 NGC 1134 IG 02 53 41.3598078576 +13 00 51.209541468   13.2       ~ 108 1
14 NVSS J025557+004132 rG 02 55 57.2812303104 +00 41 33.370546416   14.9       ~ 80 0
15 UGC 2982 G 04 12 22.670 +05 32 49.13   15.50       ~ 151 0
16 NGC 1667 Sy2 04 48 37.1804579280 -06 19 11.824427712   13.66 12.86 11.72   ~ 349 1
17 NGC 2782 Sy2 09 14 05.120 +40 06 49.68 12.29 12.30 11.63     ~ 447 3
18 NGC 2856 GiP 09 24 16.0155478176 +49 14 57.076425384   14.10       ~ 80 2
19 NGC 2966 GiP 09 42 11.5147585416 +04 40 23.485202148   14.0       ~ 107 0
20 NGC 2990 GiG 09 46 17.219 +05 42 31.85   12.5       ~ 79 1
21 IC 563 G 09 46 20.361 +03 02 43.86   14.7       ~ 82 0
22 IC 564 rG 09 46 21.0998750808 +03 04 17.078546964   14.1       ~ 87 0
23 NGC 3094 G 10 01 25.9394231904 +15 46 12.175678236   13.5       ~ 110 0
24 NGC 3110 H2G 10 04 02.124 -06 28 29.12   13.4   13.3 12.5 ~ 159 3
25 NGC 3221 G 10 22 19.988 +21 34 10.56   14.3       ~ 127 1
26 NGC 3367 Sy1 10 46 34.9528432440 +13 45 03.081157488 11.89 12.05 11.50     ~ 264 1
27 NGC 3583 GiP 11 14 10.979 +48 19 06.16   11.6       ~ 186 1
28 MCG+00-29-023 Sy2 11 21 12.261 -02 59 03.00   15.0       ~ 110 0
29 IC 2810 AGN 11 25 45.055 +14 40 35.98   15.4       ~ 114 0
30 NGC 3994 LIN 11 57 36.8662975416 +32 16 39.447161112   13.51 12.87     ~ 177 1
31 NGC 4045 AGN 12 02 42.2505701136 +01 58 36.362990064   13.144   16.938 12.1 ~ 181 0
32 NGC 4273 GiP 12 19 56.063 +05 20 36.12   12.3       ~ 253 0
33 NGC 4433 GiP 12 27 38.610 -08 16 42.42   13.4   12.40 12.7 ~ 93 0
34 NGC 4793 SBG 12 54 40.6141698528 +28 56 19.233837060   12.50 11.93     ~ 173 2
35 NGC 5020 G 13 12 39.873 +12 35 59.04   13.4       ~ 88 0
36 NGC 5104 rG 13 21 23.115 +00 20 33.38   14.5   13.227   ~ 141 0
37 NGC 5256 PaG 13 38 17.5 +48 16 37   14.1 13.42     ~ 417 1
38 UGC 8739 GiG 13 49 13.912 +35 15 27.04   14.7       ~ 107 1
39 NGC 5390 LIN 13 55 39.9385716624 +40 27 42.380606592   12.81 11.93 10.04   ~ 334 1
40 NGC 5426 GiP 14 03 24.8484884640 -06 04 08.186632788   12.6   12.76 12.4 ~ 164 0
41 APG 271 IG 14 03 25.45 -06 02 59.9           ~ 209 0
42 NGC 5427 GiP 14 03 26.0408044536 -06 01 50.682790236   14.67 13.96 11.54   ~ 280 0
43 NGC 5600 GiG 14 23 49.541 +14 38 19.45   11.9       ~ 88 0
44 NGC 5653 H2G 14 30 10.4187147048 +31 12 55.568509596   12.7       ~ 164 1
45 NGC 5665 IG 14 32 25.796 +08 04 42.43   12.6       ~ 133 0
46 NGC 5676 GiG 14 32 46.853 +49 27 28.11   11.7       ~ 244 1
47 NGC 5713 GiP 14 40 11.528 -00 17 21.16 11.88 11.84 11.20     ~ 373 2
48 NGC 5792 EmG 14 58 22.709 -01 05 27.89   11.8   11.8 11.1 ~ 170 0
49 NGC 5900 GiP 15 15 05.017 +42 12 35.47   14.43 13.39     ~ 99 0
50 NGC 5936 H2G 15 30 00.846 +12 59 21.55   13.0       ~ 156 1
51 NGC 5937 EmG 15 30 46.1177972544 -02 49 46.042511232   13.1       ~ 84 0
52 NGC 5962 GiP 15 36 31.6809457296 +16 36 27.933030504 12.04 11.98 11.34     ~ 237 1
53 NGC 5990 Sy2 15 46 16.3702704024 +02 24 55.693907820   13.1       ~ 131 1
54 NGC 6052 IG 16 05 12.8715178104 +20 32 32.607297132 13.01 13.44 13.00     ~ 341 2
55 NGC 6181 GiG 16 32 20.969 +19 49 35.77   12.7       ~ 237 0
56 NGC 7448 IG 23 00 03.589 +15 58 49.31   12.0       ~ 221 0
57 Z 453-62 G 23 04 56.514 +19 33 07.86   15.2       ~ 100 0
58 NGC 7541 GiP 23 14 43.857 +04 32 02.04   12.7       ~ 311 1
59 IC 5298 Sy2 23 16 00.6756811155 +25 33 24.081139422   15.0       ~ 183 0
60 NGC 7591 SyG 23 18 16.2727927344 +06 35 09.108933504   13.8       ~ 248 0
61 NGC 7674 Sy2 23 27 56.6973043968 +08 46 44.253707772 13.84 13.92 13.23 12.64   ~ 669 4
62 NGC 7678 AGN 23 28 27.8628511800 +22 25 16.568913432   15.3       ~ 192 0
63 NGC 7771 GiG 23 51 24.880 +20 06 42.57 13.42 13.08 12.25     ~ 326 4

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2022.08.18-03:43:38

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