2007MNRAS.382.1342F

Query : 2007MNRAS.382.1342F

2007MNRAS.382.1342F - Mon. Not. R. Astron. Soc., 382, 1342-1352 (2007/December-2)

Compact stellar systems around NGC1399.

FIRTH P., DRINKWATER M.J., EVSTIGNEEVA E.A., GREGG M.D., KARICK A.M., JONES J.B. and PHILLIPPS S.

Abstract (from CDS):

We have obtained spectroscopic redshifts of colour-selected point sources in four wide area VLT-FLAMES (Very Large Telescope-Fibre Large Array Multi Element Spectrograph) fields around the Fornax cluster giant elliptical galaxy NGC1399, identifying as cluster members 27 previously unknown faint compact stellar systems (CSS), and improving redshift accuracy for 23 previously catalogued CSS.

By amalgamating our results with CSS from previous 2dF observations and excluding CSS dynamically associated with prominent (non-dwarf) galaxies surrounding NGC1399, we have isolated 80 `unbound' systems that are either part of NGC 1399's globular cluster (GC) system or intracluster GCs. For these unbound systems, we find (i) they are mostly located off the main stellar locus in colour-colour space; (ii) their projected distribution about NGC 1399 is anisotropic, following the Fornax cluster galaxy distribution, and there is weak evidence for group rotation about NGC 1399; (iii) their completeness-adjusted radial surface density profile has a slope similar to that of NGC 1399's inner GC system; (iv) their mean heliocentric recessional velocity is between that of NGC 1399's inner GCs and that of the surrounding dwarf galaxies, but their velocity dispersion is significantly lower; (v) bright CSS (MV< -11) are slightly redder than the fainter systems, suggesting they have higher metallicity; (vi) CSS show no significant trend in g' - i' colour index with radial distance from NGC 1399.


Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): galaxies: clusters: individual: Fornax cluster - galaxies: distances and redshifts - galaxies: individual: NGC 1399 - galaxies: kinematics and dynamics - galaxies: star clusters

VizieR on-line data: <Available at CDS (J/MNRAS/382/1342): table2.dat>

Nomenclature: Table 2: [FDE2007] JHHMMSS.ss+DDMMSS.s N=32+27.

CDS comments: In Chap. 4. : UCD 3 = FCOS 1-2053, In chap 2.4 : UCD 22 = FCOS 4-2028.

Simbad objects: 95

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Number of rows : 95
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 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
2 MCG-06-08-027 EmG 03 34 29.4927803424 -35 32 47.329271916   14.50       ~ 95 1
3 NGC 1373 GiP 03 34 59.1993515280 -35 10 15.879086760 14.44 14.03 13.26     ~ 136 1
4 NGC 1374 EmG 03 35 16.5885737352 -35 13 34.563417168 12.46 11.97 11.08 10.59   ~ 322 1
5 NGC 1375 GiG 03 35 16.8025873104 -35 15 56.371399740 13.50 13.02 12.40 11.74   ~ 175 1
6 IC 335 GiG 03 35 31.0692175536 -34 26 49.368859656   12.90   11.71   ~ 147 0
7 NGC 1379 GiP 03 36 03.9668625792 -35 26 28.547476800 12.17 12.04 10.91 10.60   ~ 277 1
8 [FDE2007] J033622.23-353634.4 GiC 03 36 22.2511813776 -35 36 34.096342644           ~ 7 0
9 [FDE2007] J033626.67-352201.5 GiC 03 36 26.6998301472 -35 22 01.425471168           ~ 10 1
10 NGC 1380 Sy2 03 36 27.590 -34 58 34.68 11.32 10.94 9.93 9.37   ~ 460 1
11 [BAL2007] uc329.7 AG? 03 36 27.6956643984 -35 14 13.927797384           ~ 11 2
12 FDS J033628.74-345629.74 GlC 03 36 28.743 -34 56 29.75           ~ 6 1
13 NGC 1381 GiP 03 36 31.6592184144 -35 17 42.739221912 12.90 12.47 11.50 11.02   ~ 269 1
14 FDS J033634.31-351932.48 GlC 03 36 34.3293975864 -35 19 32.367377712           ~ 8 1
15 [FDE2007] J033636.31-352158.6 GlC 03 36 36.316 -35 21 58.68           ~ 3 0
16 FCC 171 LSB 03 36 37.252 -35 23 09.33           ~ 28 2
17 NGC 1369 GiG 03 36 45.2559802872 -36 15 22.575550716   13.77   12.30   ~ 62 0
18 NGC 1386 Sy1 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 553 1
19 NGC 1380A GiG 03 36 47.5007323848 -34 44 22.739259552 13.63 13.36 12.41 12.00   ~ 156 1
20 FDS J033647.59-352936.91 GlC 03 36 47.5994742744 -35 29 36.752798472           ~ 7 1
21 [FDE2007] J033647.69-354834.0 GiC 03 36 47.7214495896 -35 48 33.690107268           ~ 7 0
22 [BAL2007] gc41.40 GlC 03 36 51.6531288048 -35 30 38.791905804           ~ 8 1
23 [FDE2007] J033651.67-350535.1 ? 03 36 51.67 -35 05 35.1           ~ 2 1
24 MCG-06-09-008 GiP 03 36 54.3158470008 -35 22 28.948080864   14.81       ~ 105 2
25 [FDE2007] J033654.57-353926.9 ? 03 36 54.57 -35 39 26.9           ~ 3 0
26 [FDE2007] J033655.24-352857.6 GlC 03 36 55.2528 -35 28 57.159           ~ 3 1
27 NGC 1387 Sy2 03 36 57.0337458600 -35 30 23.675934060 12.18 11.75 10.69 10.16   ~ 290 1
28 [FDE2007] J033658.21-353201.6 GlC 03 36 58.2234 -35 32 01.144           ~ 3 1
29 [FDE2007] J033700.64-353117.6 GlC 03 37 00.6530 -35 31 17.339           ~ 3 1
30 [BAL2007] uc257.5 GiC 03 37 03.2455003608 -35 38 04.385867820   19.85 19.31     ~ 34 1
31 FDS J033705.16-351933.84 Gl? 03 37 05.156 -35 19 33.85           ~ 2 0
32 [FDE2007] J033706.84-353048.8 ? 03 37 06.84 -35 30 48.8           ~ 2 1
33 NGC 1382 GiP 03 37 08.9722655064 -35 11 41.995386996 13.19 13.79 12.92 12.31   ~ 135 1
34 [FDE2007] J033709.48-353345.5 ? 03 37 09.48 -35 33 45.5           ~ 2 0
35 NGC 1389 EmG 03 37 11.7427350576 -35 44 45.873195000 12.80 12.39 11.50 10.99   ~ 208 1
36 [FDE2007] J033712.05-350955.1 ? 03 37 12.05 -35 09 55.1           ~ 2 1
37 [FDE2007] J033717.91-354157.6 ? 03 37 17.91 -35 41 57.6           ~ 1 1
38 [FDE2007] J033724.83-353610.0 GiC 03 37 24.8566351968 -35 36 09.605900160           ~ 6 0
39 [FDE2007] J033726.23-354106.1 GlC 03 37 26.253 -35 41 05.69           ~ 3 0
40 FDS J033732.92-351651.88 Gl? 03 37 32.918 -35 16 51.88           ~ 3 0
41 [FDE2007] J033733.45-352812.8 GlC 03 37 33.470 -35 28 12.90       21.39   ~ 3 0
42 [FDE2007] J033735.24-353412.9 GlC 03 37 35.280 -35 34 13.10       21.21   ~ 3 0
43 FCOS 2-78 GlC 03 37 41.8055243088 -35 41 22.842102804     20.69     ~ 6 0
44 FCOS 4-2028 Gl? 03 37 43.5034612128 -35 15 09.937168380     20.41     ~ 9 0
45 FDS J033743.56-352251.47 GlC 03 37 43.5725098896 -35 22 51.470993208           ~ 7 0
46 [FDE2007] J033744.72-351918.8 GlC 03 37 44.720 -35 19 18.90       20.94   ~ 3 0
47 [FDE2007] J033746.77-353923.8 GlC 03 37 46.793 -35 39 23.54           ~ 3 0
48 [FDE2007] J033756.37-353915.2 GlC 03 37 56.370 -35 39 15.00       21.83   ~ 3 0
49 NGC 1396 GiG 03 38 06.5677454520 -35 26 23.637846372   14.80       ~ 105 1
50 ESO 358-42 GiC 03 38 09.1644279912 -34 31 07.380761484   15.74   14.44   ~ 67 1
51 [BAL2007] gc445.7 GlC 03 38 09.2451322056 -35 35 06.907116372       20.15   ~ 7 0
52 FCOS 2-73 GlC 03 38 11.9732010696 -35 39 57.099681000     20.40 19.81   ~ 9 0
53 FCOS 0-2025 Gl? 03 38 17.972 -35 15 06.02     20.87     ~ 6 1
54 LEDA 74806 LSB 03 38 18.80 -35 31 49.4   17.3 17.18     ~ 37 1
55 LEDA 74808 EmG 03 38 19.265 -35 07 44.74   15.60 15.34     ~ 65 0
56 LEDA 74811 EmG 03 38 21.4890668040 -35 15 34.953195492   15.89 15.65     ~ 42 0
57 FCOS 3-2027 G 03 38 23.7417495312 -35 13 49.405426788     19.76     ~ 11 1
58 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
59 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
60 [MHJ2008] F-18 G 03 38 41.9519250336 -35 33 12.952421316     19.70     ~ 14 1
61 [FDE2007] J033845.80-353426.6 GiC 03 38 45.81 -35 34 27.4           ~ 5 1
62 [FDE2007] J033847.41-353713.6 GiC 03 38 47.4172591800 -35 37 13.532898108           ~ 4 1
63 [FDE2007] J033850.64-353348.4 GiC 03 38 50.73 -35 33 48.3           ~ 4 1
64 NGC 1404 rG 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 787 1
65 CGF 1-4 GlC 03 38 54.0545340024 -35 33 33.320376180   18.5 18.06     ~ 81 1
66 [FDE2007] J033904.55-351535.2 ? 03 39 04.55 -35 15 35.2           ~ 2 0
67 [FDE2007] J033913.30-352217.2 ? 03 39 13.30 -35 22 17.2           ~ 1 1
68 LEDA 13449 GiC 03 39 13.42 -35 22 15.7   15.1 14.91     ~ 68 1
69 [FDE2007] J033915.34-353534.7 ? 03 39 15.34 -35 35 34.7           ~ 2 0
70 FCOS 1-60 GlC 03 39 17.6834039208 -35 25 30.066435228   21.15 20.19 19.57   ~ 25 0
71 FCOS 3-2004 GlC 03 39 20.5202777400 -35 19 14.337162408     19.73 18.77   ~ 10 0
72 [FDE2007] J033924.66-350517.6 ? 03 39 24.66 -35 05 17.6           ~ 2 0
73 LEDA 2793608 GiC 03 39 35.9209845336 -35 28 24.441828204   18.82 19.12     ~ 44 1
74 [FDE2007] J033936.05-351513.3 ? 03 39 36.05 -35 15 13.3           ~ 2 0
75 FCOS 3-2019 Gl? 03 39 37.1659039704 -35 15 21.696531228     20.49     ~ 6 0
76 [FDE2007] J033940.13-351835.7 ? 03 39 40.13 -35 18 35.7           ~ 2 0
77 [FDE2007] J033945.82-351746.3 ? 03 39 45.82 -35 17 46.3           ~ 2 0
78 [FDE2007] J033949.16-353446.3 GlC 03 39 49.163 -35 34 46.17           ~ 3 1
79 FCSS J033952.5-350424 GiC 03 39 52.5471040440 -35 04 24.003755616   19.66 19.50     ~ 37 0
80 [FDE2007] J033953.63-350133.0 ? 03 39 53.63 -35 01 33.0           ~ 2 0
81 [FDE2007] J034000.71-354158.6 ? 03 40 00.71 -35 41 58.6           ~ 2 1
82 [FDE2007] J034002.52-353648.8 GlC 03 40 02.534 -35 36 48.68           ~ 3 0
83 [FDE2007] J034002.79-353857.3 GlC 03 40 02.811 -35 38 57.16           ~ 3 1
84 FDS J034006.75-352927.20 GlC 03 40 06.752 -35 29 27.19           ~ 4 0
85 NGC 1427A GiP 03 40 08.6854 -35 37 34.647   13.44   12.68 13.3 ~ 127 1
86 [FDE2007] J034019.89-351530.0 GiC 03 40 19.8986194104 -35 15 29.666258424           ~ 5 0
87 [FDE2007] J034023.31-353832.1 GlC 03 40 23.320 -35 38 32.02           ~ 3 1
88 [FDE2007] J034023.54-351636.5 ? 03 40 23.54 -35 16 36.5           ~ 1 1
89 [FDE2007] J034024.92-350637.5 GiC 03 40 24.9308999640 -35 06 37.236212712           ~ 4 0
90 MCG-06-09-019 EmG 03 41 32.607 -34 53 18.01   13.95   13.02 13.8 ~ 106 0
91 LEDA 74933 GiC 03 42 17.2756218024 -35 32 26.556690480   16.26 16.31     ~ 41 0
92 NGC 1427 GiG 03 42 19.4455150392 -35 23 33.169251120   11.89   10.44   ~ 298 0
93 NGC 1428 GiG 03 42 22.73 -35 09 14.4   13.77   12.49   ~ 125 0
94 NGC 1437A GiG 03 43 02.19 -36 16 24.1   13.92   13.09   ~ 87 0
95 NAME Local Group GrG ~ ~           ~ 9325 0

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