1997A&A...327..966D


Query : 1997A&A...327..966D

1997A&A...327..966D - Astronomy and Astrophysics, volume 327, 966-982 (1997/11-3)

The z-structure of disk galaxies towards the galaxy planes.

DE GRIJS R., PELETIER R.F. and VAN DER KRUIT P.C.

Abstract (from CDS):

We present a detailed study of a statistically complete sample of highly inclined disk galaxies in the near-infrared K' band. Since the K'-band light is relatively insensitive to contamination by galactic dust, we have been able to follow the vertical light distributions all the way down to the galaxy planes. The mean levels for the sharpness of the K'-band luminosity peaks indicate that the vertical luminosity distributions are more peaked than expected for the intermediate sech(z) distribution, but rounder than exponential. After fitting a generalized family of fitting functions characterised by an exponent 2/n (n=∞ for exponential, n=2 for sech and n=1 for sech2; van der Kruit 1988) we find that the mean value for 2/n in the K' band equals <2/n>K'=0.538, σK'=0.198. Since projection of not completely edge-on galaxies onto the plane of the sky causes vertical luminosity profiles to become rounder, we have performed simulations that show that it is possible that all our galaxies can have intrinsically exponential vertical surface brightness distributions. We find that the profile shape is independent of galaxy type, and varies little with position along the major axis. The fact that we observe this in all our sample galaxies indicates that the formation process of the galaxy disks perpendicular to the galaxy planes is a process intrinsic to the disks themselves.

Abstract Copyright:

Journal keyword(s): galaxies: fundamental parameters - galaxies: photometry - galaxies: spiral - galaxies: statistics - galaxies: structure

Simbad objects: 47

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Number of rows : 47
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 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1595 2
2 ESO 416-25 GiC 02 48 40.805 -31 32 10.62   14.68   13.30 13.7 ~ 64 0
3 IC 1963 GiG 03 35 31.0692175536 -34 26 49.368859656   12.90   11.71   ~ 120 0
4 ESO 201-22 G 04 08 59.922 -48 43 37.49   14.73   14.3 13.8 ~ 54 0
5 IC 2058 EmG 04 17 54.3720552624 -55 55 57.738342360   13.90   12.94 13.2 ~ 88 2
6 ESO 202-35 G 04 32 16.4374770384 -49 40 32.866998276   13.38   12.31 13.0 ~ 62 0
7 NGC 1886 EmG 05 21 48.1563158664 -23 48 36.315007812   13.62   12.28   ~ 74 0
8 ESO 33-22 G 05 31 41.294 -73 45 05.14   15.56   14.71 14.7 ~ 38 1
9 ESO 555-36 EmG 06 07 41.799 -19 54 43.98   15.60   13.98   ~ 30 0
10 ESO 311-12 G 07 47 34.050 -41 27 07.71   12.83   11.14   ~ 40 0
11 ESO 564-27 G 09 11 54.664 -20 07 00.82   14.39   13.03 13.0 ~ 61 0
12 ESO 315-20 G 09 42 22.082 -41 48 57.30   17.02   14.60   ~ 22 0
13 ESO 435-14 GiG 09 57 48.417 -28 30 23.57   14.44   13.06 13.7 ~ 58 1
14 IC 2531 EmG 09 59 55.6140265128 -29 37 04.575809208   13.19   11.54 12.1 ~ 136 1
15 ESO 435-50 G 10 10 50.4 -30 25 26   15.94   14.94   ~ 37 0
16 ESO 263-15 G 10 12 19.856 -47 17 41.51   14.42   12.87 13.4 ~ 44 0
17 ESO 263-18 GiG 10 13 30.465 -43 43 01.07   14.82   13.31   ~ 24 0
18 NGC 3203 GiG 10 19 33.8163340224 -26 41 55.783685292   13.22   11.65   ~ 62 0
19 NGC 3390 LIN 10 48 04.343 -31 32 00.04   13.24 13.41 11.43   ~ 82 0
20 ESO 377-7 G 11 06 26.4 -36 41 48   15.93   14.60   ~ 13 0
21 ESO 505-3 EmG 12 01 06.991 -24 34 04.89   13.84   13.10 13.6 ~ 58 0
22 ESO 321-10 EmG 12 11 42.089 -38 32 54.82   14.26   12.39   ~ 59 0
23 ESO 506-2 G 12 20 10.1608836912 -26 04 00.152684508   14.60   13.15   ~ 46 0
24 NGC 4672 GiG 12 46 15.7249021968 -41 42 21.407260572   14.12 14.25 12.60 12.9 ~ 72 0
25 ESO 322-87 GiG 12 48 02.6698910352 -40 49 07.390787916   14.68   13.31   ~ 45 0
26 ESO 269-15 GiC 12 57 13.154 -46 22 28.79   14.07   13.7 13.5 ~ 53 0
27 ESO 575-61 G 13 08 15.6 -21 00 09   16.11   14.83   ~ 40 0
28 ESO 444-21 GiC 13 23 30.645 -30 06 51.31   15.60   14.81   ~ 52 0
29 ESO 509-19 EmG 13 27 56.3718046296 -25 51 22.461435936   14.97   13.48   ~ 43 0
30 ESO 383-5 EmG 13 29 23.551 -34 16 16.82   14.25   12.82 12.9 ~ 52 0
31 ESO 446-18 EmG 14 08 38.287 -29 34 19.34   14.91   13.48   ~ 58 0
32 IC 4393 EmG 14 17 48.951 -31 20 57.12   14.59   13.20 13.5 ~ 67 0
33 IC 4484 G 14 47 43.894 -73 18 21.46   14.23   14.39 13.3 ~ 38 0
34 ESO 138-14 GiG 17 07 00.022 -62 05 04.24   13.21   12.30 12.6 ~ 57 0
35 ESO 280-13 GiG 18 23 17.871 -43 08 33.09   13.2   12.5 12.4 ~ 33 0
36 IC 4819 G 19 07 07.3 -59 28 01   14.15   13.21 13.6 ~ 32 0
37 IC 4871 GiG 19 35 42.224 -57 31 09.30   14.03   12.73 13.2 ~ 62 0
38 ESO 460-31 EmG 19 44 21.5359366440 -27 24 24.849832680   15.15   13.9 13.6 ~ 54 0
39 ESO 340-8 G 20 17 11.8389133440 -40 55 25.314812724   15.45   14.50 14.8 ~ 48 0
40 ESO 340-9 G 20 17 20.515 -38 40 25.24   14.52   14.4 14.3 ~ 51 0
41 IC 5026 G 20 48 28.0612119312 -78 04 09.170029920   15.48   14.12 14.5 ~ 51 0
42 IC 5052 G 20 52 01.633 -69 11 35.93 12.83 12.20 11.66 11.40   ~ 145 0
43 ESO 286-18 GiP 20 57 50.3434558560 -43 22 28.058494764   14.30   12.77 13.2 ~ 50 0
44 ESO 235-53 GiG 21 05 10.210 -47 47 22.75   14.53   12.68   ~ 28 0
45 ESO 531-22 G 21 40 29.480 -26 31 40.68   13.92   13.7 13.3 ~ 59 0
46 ESO 288-25 GiG 21 59 17.8140093336 -43 52 01.109469720   13.97   12.67   ~ 49 0
47 ESO 240-11 GiG 23 37 49.4188489776 -47 43 38.430144948   13.05   11.69 12.3 ~ 107 1

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2022.08.13-08:28:09

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