2013A&A...559A..76L


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST02:50:44

2013A&A...559A..76L - Astronomy and Astrophysics, volume 559A, 76-76 (2013/11-1)

A normal abundance of faint satellites in the fossil group NGC 6482.

LIEDER S., MIESKE S., SANCHEZ-JANSSEN R., HILKER M., LISKER T. and TANAKA M.

Abstract (from CDS):

A fossil group is considered the end product in a galaxy group's evolution. It is a massive central galaxy that dominates the luminosity budget of the group, and is the outcome of efficient merging between intermediate-luminosity members. Little is known, however, about the faint satellite systems of fossil groups. Here we present a Subaru/Suprime-Cam wide-field, deep imaging study in the B- and R-bands of the nearest fossil group NGC6482 (Mtot∼4x1012M), covering the virial radius out to 310kpc. We performed detailed completeness estimations and selected group member candidates by a combination of automated object detection and visual inspection. A fiducial sample of 48 member candidates down to MR~-10.5mag is detected, making this study the deepest of a fossil group to now. We investigate the photometric scaling relations, the color-magnitude relation, and the luminosity function of our galaxy sample. We find evidence of recent and ongoing merger events among bright group galaxies. The color-magnitude relation is comparable to that of nearby galaxy clusters, and it exhibits significant scatter at the faintest luminosities. The completeness-corrected luminosity function is dominated by early-type dwarfs and is characterized by a faint end slope α=-1.32±0.05. We conclude that the NGC6482 fossil group shows photometric properties consistent with those of regular galaxy clusters and groups, including a normal abundance of faint satellites.

Abstract Copyright:

Journal keyword(s): galaxies: evolution - galaxies: dwarf - galaxies: groups: general - galaxies: clusters: general - galaxies: photometry

Nomenclature: Table A.1: [LMS2013] NN (Nos 1-48).

Simbad objects: 57

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Number of rows : 57

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 1939 1
2 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1538 0
3 NGC 1407 GiG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 527 1
4 NAME HYA SUPERCL SCG 08 57.9 +03 10           ~ 152 0
5 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5825 0
6 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 971 2
7 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4208 2
8 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 555 3
9 [LMS2013] 16 G 17 50 39.60 +23 15 30.7           ~ 1 0
10 [LMS2013] 42 G 17 50 41.73 +23 13 26.9           ~ 1 0
11 [LMS2013] 44 G 17 50 42.84 +22 57 49.0           ~ 1 0
12 [LMS2013] 7 G 17 50 44.05 +23 08 46.4           ~ 1 0
13 [LMS2013] 18 G 17 50 44.16 +22 52 23.1           ~ 1 0
14 Mrk 895 GiG 17 50 45.7732220397 +23 08 19.061147482   15.3       ~ 17 0
15 [LMS2013] 21 G 17 50 46.50 +22 51 49.9           ~ 1 0
16 [LMS2013] 35 G 17 50 47.90 +23 03 50.7           ~ 1 0
17 [LMS2013] 24 G 17 50 54.65 +23 01 36.9           ~ 1 0
18 [LMS2013] 8 G 17 50 57.67 +22 54 16.3           ~ 1 0
19 [LMS2013] 28 G 17 51 00.89 +22 51 59.6           ~ 1 0
20 [LMS2013] 20 G 17 51 01.11 +23 04 54.7           ~ 1 0
21 [LMS2013] 15 G 17 51 02.98 +23 02 51.3           ~ 1 0
22 [LMS2013] 13 G 17 51 04.08 +22 51 17.1           ~ 1 0
23 [LMS2013] 9 G 17 51 07.30 +23 08 35.8           ~ 1 0
24 [LMS2013] 30 G 17 51 12.72 +23 03 20.3           ~ 1 0
25 [LMS2013] 17 G 17 51 15.25 +23 18 16.6           ~ 1 0
26 [LMS2013] 25 G 17 51 18.55 +23 01 09.0           ~ 1 0
27 [LMS2013] 33 G 17 51 20.90 +23 03 49.7           ~ 1 0
28 [LMS2013] 10 G 17 51 22.05 +23 04 03.9           ~ 1 0
29 [LMS2013] 41 G 17 51 22.16 +22 51 03.5           ~ 1 0
30 [LMS2013] 23 G 17 51 23.65 +23 10 20.0           ~ 1 0
31 [LMS2013] 45 G 17 51 24.43 +23 01 08.7           ~ 1 0
32 [LMS2013] 12 G 17 51 24.92 +23 03 59.5           ~ 1 0
33 [LMS2013] 36 G 17 51 30.45 +23 11 33.9           ~ 1 0
34 [LMS2013] 26 G 17 51 35.31 +23 08 08.4           ~ 1 0
35 LEDA 214640 G 17 51 35.9 +23 04 33           ~ 3 0
36 [LMS2013] 14 G 17 51 38.61 +23 07 24.6           ~ 1 0
37 [LMS2013] 37 G 17 51 40.99 +23 08 34.0           ~ 1 0
38 [LMS2013] 22 G 17 51 44.01 +23 05 52.1           ~ 1 0
39 NAME NGC 6482 Group ClG 17 51 47.5 +23 04 14           ~ 20 0
40 NGC 6482 GiG 17 51 48.8334002678 +23 04 18.884647281 12.71 12.35 11.45     ~ 190 1
41 [LMS2013] 32 G 17 51 53.63 +22 59 37.0           ~ 1 0
42 [LMS2013] 43 G 17 51 53.89 +23 07 10.1           ~ 1 0
43 [LMS2013] 29 G 17 51 54.77 +22 55 36.9           ~ 1 0
44 [LMS2013] 34 G 17 52 02.64 +23 09 43.2           ~ 1 0
45 [LMS2013] 40 G 17 52 06.36 +22 54 19.0           ~ 1 0
46 [LMS2013] 19 G 17 52 10.45 +22 50 29.7           ~ 1 0
47 [LMS2013] 46 G 17 52 14.00 +22 56 12.0           ~ 1 0
48 [LMS2013] 48 G 17 52 15.38 +22 51 52.6           ~ 1 0
49 [LMS2013] 31 G 17 52 16.77 +23 00 38.7           ~ 1 0
50 [LMS2013] 38 G 17 52 18.08 +23 17 49.3           ~ 1 0
51 UGC 11018 G 17 52 22.38 +22 52 19.5   17       ~ 8 0
52 [LMS2013] 47 G 17 52 25.22 +23 02 44.0           ~ 1 0
53 [LMS2013] 27 G 17 52 38.11 +23 18 34.9           ~ 1 0
54 [LMS2013] 39 G 17 52 45.68 +23 12 18.6           ~ 1 0
55 2MASX J17524964+2300526 G 17 52 49.644 +23 00 52.69   15.6       ~ 3 0
56 UGC 11024 GiG 17 52 54.492 +23 12 39.69   15.0       ~ 22 0
57 [LMS2013] 11 G 17 52 54.99 +23 07 05.0           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.07.10-02:50:44

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