1998A&AS..131..265S


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.09CEST15:47:46

1998A&AS..131..265S - Astron. Astrophys., Suppl. Ser., 131, 265-286 (1998/August-0)

Stellar disks and embedded bars in early-type galaxies. I. 2-D photometric decomposition of 28 southern early-type galaxies.

SCORZA C., BENDER R., WINKELMANN C., CAPACCIOLI M. and MACCHETTO F.D.

Abstract (from CDS):

We present photometric disk-bulge decompositions of 28 southern early-type galaxies with types T←3 in either the RC3 or ESO-Lauberts & Valentijn catalogues. The decomposition method applied here is based on that developed by Scorza & Bender (1995A&A...293...20S) but the improved version allows for arbitrary surface brightness profiles of the disk models. We find three types of objects in this sample: bulge-dominated systems, with fully embedded close to edge-on disks; disk-dominated close to edge-on objects and objects with barred disks being modestly inclined down to face-on. Like in Scorza & Bender (1995A&A...293...20S), the analysis made here indicates that the superposition of a thin disk and an elliptical bulge can give good account for the morphology of most of the galaxies. We find the disks to have a diversity of surface brightness profiles, the most frequent case being that of a disk with an exponential profile, which becomes steeper at small radii. After disk subtraction, the bulges follow more closely the r1/4 law. Five of the galaxies show signatures of embedded bar components. These have flat surface brightness profiles at small radii and rectangular shape, which are typical features of barred early-type galaxies. We find that the properties of the galaxies, most notably the disk-to-total ratio, correlates only modestly with the original classification of the galaxies.

Abstract Copyright:

Journal keyword(s): galaxies: elliplicals and lenticular - galaxies: structure - galaxies: photometry

Simbad objects: 28

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Number of rows : 28

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 1201 GiG 03 04 07.969 -26 04 10.53   11.78 10.64 10.35   ~ 133 0
2 NGC 1537 GiG 04 13 40.706 -31 38 43.48   11.54   10.11   ~ 94 0
3 NGC 1700 GiG 04 56 56.347 -04 51 56.64   12   11.14   ~ 333 1
4 NGC 2271 G 06 42 52.996 -23 28 33.38   13.17   11.67   ~ 44 0
5 ESO 208-21 GiG 07 33 56.2871677376 -50 26 35.033466222   12.01   10.39   ~ 75 0
6 NGC 2502 GiG 07 55 51.5493173308 -52 18 24.613596968   13.09   11.09 11.9 ~ 56 0
7 NGC 2904 GiG 09 30 16.981 -30 23 06.14   13.69   12.04   ~ 45 0
8 IC 2552 GiG 10 10 46.1554693578 -34 50 41.086950082   13.42   12.00   ~ 38 0
9 NGC 3585 GiG 11 13 17.109 -26 45 17.96   10.64   9.22   ~ 267 0
10 NGC 3706 GiP 11 29 44.4302701296 -36 23 28.740232293   12.20 11.08 10.56   ~ 140 0
11 NGC 3818 GiG 11 41 57.3592664401 -06 09 20.448440482   13   11.78   ~ 171 0
12 NGC 4024 GiG 11 58 31.249 -18 20 48.64   12.91   11.29   ~ 67 0
13 NGC 4473 GiG 12 29 48.878 +13 25 45.55 11.60 11.16 10.20     ~ 612 1
14 NGC 4550 GiP 12 35 30.612 +12 13 15.44 12.97 12.56 11.68     ~ 512 1
15 NGC 4564 GiG 12 36 26.994 +11 26 21.55 12.51 12.05 11.12     ~ 569 1
16 ESO 322-60 GiC 12 43 31.4 -41 21 43   13.42 12.99 11.54 12.0 ~ 42 0
17 NGC 4697 GiG 12 48 35.8992791099 -05 48 02.497675635   10.97   9.83   ~ 814 0
18 ESO 507-21 GiG 12 50 28.6496132150 -26 50 33.478107948   13.25   11.94   ~ 40 0
19 NGC 4830 G 12 57 27.902 -19 41 28.67   12.68   11.26   ~ 41 0
20 NGC 4831 GiG 12 57 36.680 -27 17 31.86   13.39   12.10   ~ 40 0
21 NGC 5018 GiP 13 13 01.000 -19 31 05.87   11.71   10.31   ~ 288 1
22 IC 4329 BiC 13 49 05.314 -30 17 45.20   11.96 11.54 10.31   ~ 180 2
23 NGC 6758 GiG 19 13 52.317 -56 18 35.65   12.53 11.56 10.83   ~ 79 0
24 IC 4889 GiP 19 45 15.168 -54 20 38.91   12.25 11.08 10.73 11.5 ~ 133 0
25 NGC 6851 GiG 20 03 34.402 -48 17 04.21   12.83 11.67 11.31   ~ 90 0
26 NGC 7029 G 21 11 52.0292409836 -49 17 01.318271586   12.54 11.81 11.02   ~ 97 0
27 NGC 7041 GiP 21 16 32.3674467212 -48 21 48.798095230   12.16 11.11 10.68   ~ 80 0
28 NGC 7097 GiP 21 40 12.883 -42 32 21.81   12.66 11.71 11.21   ~ 113 0

    Equat.    Gal    SGal    Ecl

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