2010MNRAS.401..924R

Query : 2010MNRAS.401..924R

2010MNRAS.401..924R - Mon. Not. R. Astron. Soc., 401, 924-932 (2010/January-2)

The effect of dust extinction on the observed properties of galaxies in the near-infrared.

RIAD I.F., KRAAN-KORTEWEG R.C. and WOUDT P.A.

Abstract (from CDS):

Galaxies behind the Milky Way suffer size reduction and dimming due to their obscuration by dust in the disc of our Galaxy. The degree of obscuration is wavelength dependent. It decreases towards longer wavelengths. Compared to the optical, the near-infrared (NIR) Ks-band extinction is only ~10 per cent that of the B band. This makes NIR surveys well suited for galaxy surveys close to the Galactic plane, where extinction is severe.

While Galactic obscuration is less prominent in the NIR, it is not negligible. In this paper, we derive empirical relations to correct isophotal radii and magnitudes of galaxies observed in the NIR for foreground absorption. We simulate extinction in the J, H and Ks bands on 64 (unobscured) galaxies from the Two Micron All Sky Survey Large Galaxy Atlas. We propose two methods for the extinction correction, the first is optimized to provide the most accurate correction and the second provides a convenient statistical correction that works adequately in lower extinction regions. The optimized correction utilizes the galaxy surface brightness, either the disc central surface brightness, µ0, or the combined disc plus bulge central surface brightness, elliptical and disc/spiral Hubble types. A detailed comparison between the different methods and their accuracy is provided.


Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): dust, extinction - galaxies: photometry - infrared: galaxies

Simbad objects: 68

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Number of rows : 68
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 NGC 24 EmG 00 09 56.542 -24 57 47.27 12.12 12.20 11.58 11.46 11.5 ~ 269 1
2 NGC 47 GiG 00 14 30.6262089120 -07 10 02.807512896   13.4   12.48 13.0 ~ 38 0
3 NGC 55 rG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 828 2
4 NGC 210 GiP 00 40 34.9927609368 -13 52 21.999585108   11.8   11.00 11.4 ~ 181 0
5 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
6 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
7 NGC 247 LSB 00 47 08.554 -20 45 37.44 10.11 9.61 9.10 8.87   ~ 480 2
8 NGC 474 GiP 01 20 06.6870520512 +03 24 55.861973100 12.75 12.37 11.51 11.42 10.56 ~ 371 1
9 NGC 488 GiG 01 21 46.7967133224 +05 15 24.623017524   15.0       ~ 299 0
10 NGC 522 GiG 01 24 45.85467 +09 59 40.6430   14.2       ~ 113 0
11 NGC 584 Sy2 01 31 20.7231919800 -06 52 04.770287472 11.93 11.44 10.48     ~ 417 2
12 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
13 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
14 BAX 028.2522-13.7387 ClG 01 53 00.40 -13 44 18.0           ~ 389 0
15 NGC 720 Sy1 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 536 0
16 NGC 772 GiP 01 59 19.5557148984 +19 00 27.475677216 11.35 11.09 10.31 10.23 9.38 ~ 339 1
17 NGC 855 GiG 02 14 03.612 +27 52 37.82 14.19 13.56 12.75 12.40   ~ 236 1
18 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
19 NGC 908 Sy1 02 23 04.569 -21 14 01.86   11.03 10.18 9.84 10.6 ~ 202 1
20 NGC 1073 EmG 02 43 40.598 +01 22 33.13   11.3   11.3 11.8 ~ 335 0
21 NGC 1187 Sy1 03 02 37.5895048560 -22 52 02.479512648   11.41   10.43 11.2 ~ 228 1
22 NGC 1300 Sy2 03 19 41.0462219928 -19 24 40.187565432   11.16 10.42 9.90 10.7 ~ 616 0
23 NGC 1340 GiG 03 28 19.6251763296 -31 04 05.435465520   11.20 10.32 9.70   ~ 222 1
24 NGC 1377 GiG 03 36 39.077 -20 54 08.14   13.38   12.12   ~ 241 0
25 NGC 1395 SyG 03 38 29.789 -23 01 39.69   10.71   8.99   ~ 289 0
26 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
27 NGC 1532 GiP 04 12 04.3612491792 -32 52 26.960041056   10.65   9.34 10.4 ~ 164 0
28 NGC 1808 Sy2 05 07 42.343 -37 30 46.98 11.05 10.80 9.94 9.36 10.2 ~ 756 3
29 NGC 2310 AG? 06 53 53.9856718776 -40 51 45.766145412 13.20 12.68 11.76 11.16   ~ 79 1
30 NGC 2442 LIN 07 36 23.7700545576 -69 31 50.997856332 11.47 11.15 10.42 9.71 10.4 ~ 243 1
31 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
32 NAME Great Attractor SCG 10 32 -46.0           ~ 617 0
33 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
34 M 65 GiP 11 18 55.9084654776 +13 05 32.300703672   9.6       ~ 458 1
35 NGC 3630 GiG 11 20 16.9744492824 +02 57 51.853628196   12.91       ~ 111 1
36 NGC 3986 LIN 11 56 44.161 +32 01 18.14   14.0       ~ 60 1
37 M 109 GiG 11 57 35.9631479640 +53 22 29.006082336   10.94   9.57   ~ 483 0
38 M 98 LIN 12 13 48.2910686976 +14 54 01.953475200 11.25 10.95 10.14     ~ 499 2
39 NGC 4216 AGN 12 15 54.444 +13 08 57.84 11.51 10.99 10.01     ~ 424 1
40 NGC 4244 GiG 12 17 29.659 +37 48 25.60   10.71   9.99   ~ 582 1
41 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
42 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
43 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 871 0
44 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
45 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1126 1
46 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
47 NGC 4473 GiG 12 29 48.878 +13 25 45.55 11.60 11.16 10.20     ~ 671 1
48 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
49 NGC 4494 GiP 12 31 24.0391348536 +25 46 30.071664120   10.55 9.74     ~ 491 0
50 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 843 1
51 NGC 4527 AGN 12 34 08.49600 +02 39 13.7160   12.4       ~ 549 2
52 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 953 1
53 NGC 4589 LIN 12 37 24.9947272593 +74 11 30.861224110   12.0       ~ 300 1
54 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
55 M 59 GiG 12 42 02.2581375168 +11 38 48.909507756   11.0       ~ 721 0
56 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
57 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
58 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
59 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
60 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 1010 2
61 NGC 5005 LIN 13 10 56.312 +37 03 32.19   14.67 13.67     ~ 567 2
62 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
63 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
64 NGC 5195 GiG 13 29 59.590 +47 15 58.06 10.76 10.45 9.55 9.31   ~ 816 3
65 NAME Cen B QSO 13 46 49.04248361 -60 24 29.3553900         15.74 ~ 165 0
66 NGC 5746 GiP 14 44 56.005 +01 57 17.06   12.3       ~ 375 0
67 NGC 7090 EmG 21 36 28.865 -54 33 26.35 12.35 11.60 11.05 10.82 11.2 ~ 183 0
68 NAME Norma Wall reg ~ ~           ~ 15 0

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