2010AJ....139....1P

Query : 2010AJ....139....1P

2010AJ....139....1P - Astron. J., 139, 1-16 (2010/January-0)

Mass distribution in Hickson compact groups of galaxies.

PLANA H., AMRAM P., MENDES DE OLIVEIRA C. and BALKOWSKI C.

Abstract (from CDS):

This study presents the mass distribution for a sample of 18 late-type galaxies in nine Hickson compact groups. We used Hα rotation curves (RCs) from high-resolution two-dimensional velocity fields of Fabry-Perot observations and the J-band photometry from the Two Micron All Sky Survey, in order to determine the dark halo and the visible matter distributions. The study compares two halo density profiles, an isothermal core-like distribution, and a cuspy one. We also compare their visible and dark matter distributions with those of galaxies belonging to cluster and field galaxies coming from two samples: 40 cluster galaxies of Barnes et al. and 35 field galaxies of Spano et al. The central halo surface density is found to be constant with respect to the total absolute magnitude similar to what is found for the isolated galaxies. This suggests that the halo density is independent of galaxy type and environment. We have found that core-like density profiles better fit the RCs than cuspy-like ones. No major differences have been found between field, cluster, and compact group galaxies with respect to their dark halo density profiles.

Abstract Copyright: ∼

Journal keyword(s): galaxies: general - galaxies: halos - galaxies: kinematics and dynamics

Simbad objects: 43

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Number of rows : 43
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 MCG+02-01-009 AG? 00 01 13.3051746288 +13 08 38.132079252   16.01   15.46   ~ 41 0
2 MCG+02-01-010 AG? 00 01 14.971 +13 06 44.65   16.97   14.67   ~ 44 0
3 HCG 100 CGG 00 01 19.783 +13 07 21.81           ~ 58 0
4 HCG 2 CGG 00 31 24 +08 26.8           ~ 48 0
5 HCG 7 CGG 00 39 15.9 +00 53 17   11.4       ~ 87 0
6 NGC 201 EmG 00 39 34.8489575280 +00 51 35.886502080   14.7   12.41   ~ 107 0
7 HCG 10 CGG 01 26 24.5 +34 42 51           ~ 52 0
8 NGC 542 GiG 01 26 30.8394126528 +34 40 31.847585556   15.4   14.23   ~ 62 0
9 NGC 835 Sy2 02 09 24.606 -10 08 09.31   13.29 12.45 12.24   ~ 226 1
10 NGC 838 LIN 02 09 38.562 -10 08 46.12   13.72   12.65   ~ 211 1
11 HCG 16 CGG 02 09 40.82 -10 11 02.0           ~ 175 0
12 Z 462-37 AG? 02 39 06.00 +18 23 05.0   14.6       ~ 48 0
13 MCG-02-07-073 GiG 02 42 38.2975281144 -12 25 16.057616304   14.51   12.85   ~ 51 0
14 MCG-02-07-074 EmG 02 42 41.942 -12 25 38.79   15.79   14.44   ~ 38 0
15 HCG 19 CGG 02 42 45 -12 24.7           ~ 37 0
16 MCG-02-07-075 GiG 02 42 46.757 -12 23 52.50   15.58   14.25   ~ 28 0
17 HCG 22 CGG 03 03 31 -15 40.5           ~ 69 0
18 HCG 23 CGG 03 07 06 -09 35.1           ~ 44 0
19 HCG 31 CGG 05 01 37 -04 15.4           ~ 132 0
20 HCG 79 CGG 15 59 11.605 +20 45 24.66           ~ 117 0
21 NGC 6027C GiG 15 59 11.875 +20 44 49.71   16.89   16.74   ~ 58 0
22 HCG 87 CGG 20 48 11 -19 50.4           ~ 38 0
23 MCG-03-53-004 GiG 20 48 11.8006072944 -19 49 54.648151824   16.23   14.88   ~ 27 0
24 MCG-03-53-005 GiG 20 48 14.7948630048 -19 50 57.268042908   15.41   13.29   ~ 60 0
25 MCG-01-53-014 EmG 20 52 12.751 -05 47 53.88   15.96   15.17   ~ 45 0
26 HCG 88 CGG 20 52.4 -05 45           ~ 55 0
27 NGC 6976 AG? 20 52 26.0260763016 -05 46 20.342324820   14.95   13.96   ~ 54 0
28 NGC 6977 LIN 20 52 29.7023914056 -05 44 45.953608524   14.28   12.73   ~ 71 0
29 NGC 6978 LIN 20 52 35.4347594760 -05 42 40.047186780   14.22   12.67   ~ 91 0
30 MCG-01-54-012 G 21 20 01.0172699016 -03 55 19.686927216   15.50   14.27   ~ 32 0
31 LEDA 66574 G 21 20 07.999 -03 54 29.41   17.16   16.32   ~ 22 0
32 LEDA 66575 G 21 20 08.341 -03 55 03.69   16.55   15.39   ~ 25 0
33 HCG 89 CGG 21 20.2 -03 54           ~ 33 0
34 LEDA 66580 EmG 21 20 19.123 -03 53 45.62   16.22   15.18   ~ 27 0
35 HCG 90 CGG 22 02 06.3 -31 55 48           ~ 133 0
36 HCG 91 CGG 22 09 00.8 -27 47 36           ~ 56 0
37 NGC 7214 Sy1 22 09 07.6631604816 -27 48 34.160960772   12.48 14.10 11.40   ~ 149 0
38 MCG-05-52-035 EmG 22 09 13.9920880800 -27 46 55.650989460   14.76   13.99   ~ 59 0
39 NAME Stephan's Quintet CGG 22 35 57.5 +33 57 36           ~ 480 1
40 NGC 7674 Sy1 23 27 56.6973043968 +08 46 44.253707772 13.84 13.92 13.23 12.64   ~ 738 2
41 NGC 7674A G 23 27 58.7553926496 +08 46 57.872148456   16.10   14.38   ~ 64 0
42 LEDA 71507 G 23 28 00.2 +08 46 02   17.13   16.10   ~ 32 0
43 HCG 96 CGG 23 28 00.40 +08 46 36.9           ~ 50 0

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