2008A&A...487..485H


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:41:42

2008A&A...487..485H - Astronomy and Astrophysics, volume 487, 485-502 (2008/8-4)

Broad-band BVRI photometry of isolated spiral galaxies.

HERNANDEZ-TOLEDO H.M. and ORTEGA-ESBRI S.

Abstract (from CDS):

Uniform and high resolution observations in samples of isolated galaxies are required to estimate fundamental morphological and structural parameters for comparative studies of environmental effects and for confronting model predictions of galaxy evolution. A subsample of The Catalog of Isolated Galaxies (CIG), Karachentseva (1986BICDS..30..125K), has been uniformly observed at San Pedro Martir National Observatory in Mexico and a photometric and morphological study of these galaxies has been carried out. We report multicolor broad band (BVRI) photometry for a subsample of 40 isolated spirals drawn from the CIG. Total magnitudes and colors at various circular apertures as well as a detailed morphological analysis that is extended into the NIR bands are presented. Some structural parameters are estimated from the global light distribution in the optical and NIR bands to complement our morphological analysis and several correlations between the photometric and structural parameters are explored. Emphasis was given to the detection of morphological distortions at high/low intensity levels. The observations, data reduction, and analysis are described. Morphology is reevaluated from a combination of optical logarithmically scaled R band images, filter-enhanced R band images, (B-I) color index maps, archived near IR JHK images from the TwoMicron Survey and optical-NIR ε and PA radial profiles after an isophotal analysis. RGB images from the SDSS database were retrieved when available to complement our analysis. The CAS structural parameters (Concentration, Asymmetry, and Clumpiness) were calculated from the images in each band. The fraction of galaxies with well-identified optical/near-IR bars (SB) is 40%, while another 25% shows evidence of weak or suspected bars (SAB). The sample average value of the maximum bar ellipticity is εmax≃0.35. 57.5% of the galaxies in the sample show rings. The CAS parameters change with the observed band, the morphological type and global color. We found 9 isolated galaxies with disturbed morphology. After reviewing their local number density and tidal strength parameters, we identified CIG 744 as a morphologically disturbed isolated galaxy having MHI/LI>1; a tentative candidate to interact with a dark gas-rich object. However, its loci in the µ0I/log(MHI/LI) diagram, suggests that CIG 744 is itself a gas-rich disturbed-isolated galaxy probably in a lengthy or ongoing process of formation, instead.

Abstract Copyright:

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

Simbad objects: 44

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Number of rows : 44

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 UGC 1395 Sy2 01 55 22.0257859119 +06 36 42.420261612   14.449 13.619 13.090 12.381 ~ 136 0
2 NGC 821 G 02 08 21.150 +10 59 41.53   12.210 11.310 10.739 9.744 ~ 542 0
3 NGC 918 AGN 02 25 50.7911002898 +18 29 46.384135159   16.00 15.01     ~ 132 0
4 NGC 949 GiG 02 30 48.650 +37 08 12.46   12.667 11.975 11.490 10.790 ~ 139 0
5 NGC 1474 G 03 54 30.360 +10 42 25.51   14.662 13.762 13.190 12.419 ~ 34 0
6 NGC 1542 GiG 04 17 14.1547834276 +04 46 53.970108495   15.020 13.886 13.228 12.363 ~ 52 0
7 UGC 3258 GiC 05 10 43.010 +00 24 29.90   13.597 12.967 12.520 11.812 ~ 41 0
8 UGC 3863 GiG 07 28 54.1724771212 +49 08 13.225101559   14.497 13.481 13.327 11.922 ~ 28 0
9 UGC 3944 EmG 07 38 36.506 +37 38 00.58   14.481 13.889 13.424 12.761 ~ 71 0
10 NGC 2682 OpC 08 51 18 +11 48.0           ~ 2060 0
11 NGC 2775 G 09 10 20.112 +07 02 16.53   11.417 10.481 9.920 8.994 ~ 322 0
12 NGC 2776 AGN 09 12 14.531 +44 57 17.62   12.249 11.693 11.285 10.77 ~ 149 0
13 MCG+08-18-060 LIN 10 03 23.3368436395 +48 21 57.091862686   14.952 14.077 13.544 12.833 ~ 34 0
14 NGC 3437 EmG 10 52 35.746 +22 56 02.82   12.575 11.961 11.474 10.818 ~ 156 1
15 NGC 3655 Sy2 11 22 54.6353248122 +16 35 24.232295688   12.575 11.904 11.366 10.732 ~ 157 0
16 UGC 6608 EmG 11 38 33.263 -01 11 04.06   14.602 13.915 13.411 12.776 ~ 65 0
17 UGC 6771 LIN 11 48 00.226 +04 29 17.33   13.911 13.018 12.471 11.812 ~ 58 0
18 UGC 6847 EmG 11 52 38.016 +24 18 27.10   15.299 14.698 14.206 13.386 ~ 48 0
19 UGC 6903 EmG 11 55 36.866 +01 14 14.43   13.623 13.011 12.508 11.890 ~ 95 0
20 UGC 7416 AGN 12 21 39.199 +40 50 55.64   13.863 13.190 12.673 12.059 ~ 66 0
21 NGC 4566 Sy2 12 36 00.1190574262 +54 13 15.513330924   14.171 13.307 12.774 12.094 ~ 48 0
22 NGC 4635 EmG 12 42 39.2373002500 +19 56 43.030397857   13.597 12.995 12.571 12.082 ~ 109 0
23 NGC 5016 AGN 13 12 06.6702084873 +24 05 41.970504488   13.180 12.558 12.093 11.547 ~ 134 0
24 UGC 9088 LIN 14 11 53.449 +38 11 37.84   14.380 13.245 12.646 11.886 ~ 45 0
25 NGC 5585 GiG 14 19 48.204 +56 43 44.58   11.73 11.216 11.12 10.123 ~ 385 0
26 NGC 5622 AGN 14 26 12.195 +48 33 50.31   14.105 13.440 12.948 12.412 ~ 75 0
27 NGC 5633 EmG 14 27 28.3609163671 +46 08 47.523613534   13.176 12.932 12.449 11.575 ~ 153 0
28 PG 1525-071 HS* 15 28 11.5771272664 -07 16 32.898620269 13.658 14.85 14.89 15.14 15.197 sdO 35 0
29 NGC 6012 G 15 54 13.9058160507 +14 36 04.281115506   13.209 12.420 11.870 11.195 ~ 117 0
30 UGC 10104 LIN 15 57 27.9057210344 +30 03 35.467948031   14.730 13.874 13.344 12.636 ~ 55 0
31 UGC 10437 LIN 16 31 07.548 +43 20 52.95   14.550 14.045 13.686 13.193 ~ 57 0
32 PG 1633+099 HS* 16 35 24.0242205151 +09 47 49.892841991 13.215 14.205 14.396 14.481 14.609 sdB 104 0
33 NGC 6207 GiC 16 43 03.750 +36 49 56.73   12.189 11.651 11.240 10.691 ~ 223 0
34 IC 1231 GiG 16 46 59.015 +58 25 23.45   13.846 13.203 12.705 12.175 ~ 54 0
35 PG 1657+078 HS* 16 59 32.2152633688 +07 43 31.413989790 13.919 14.877 15.019 15.098 15.115 sdB 50 0
36 NGC 6347 G 17 19 54.6759693438 +16 39 38.403554555   14.263 13.450 12.890 12.218 ~ 50 0
37 IC 1256 G 17 23 47.322 +26 29 11.45   14.297 13.551 13.022 12.434 ~ 82 0
38 NGC 6389 G 17 32 39.785 +16 24 06.27   13.107 12.389 11.848 11.211 ~ 74 0
39 IC 1269 G 17 52 05.859 +21 34 09.03   14.026 13.218 12.709 12.189 ~ 45 0
40 UGC 11058 G 17 56 55.027 +32 38 11.75   13.701 12.981 12.462 11.909 ~ 51 0
41 NGC 6695 G 18 42 42.722 +40 22 00.69   14.374 13.493 12.917 12.226 ~ 37 0
42 UGC 11352 G 18 46 03.494 +48 50 38.60   15.428 14.685 14.190 13.590 ~ 17 0
43 NGC 6711 G 18 49 00.902 +47 39 29.09   13.984 13.267 12.735 12.222 ~ 43 0
44 NGC 7217 LIN 22 07 52.368 +31 21 33.32   12.94 11.92     ~ 467 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-07:41:42

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