2018A&A...611A..93C


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.23CEST07:40:02

2018A&A...611A..93C - Astronomy and Astrophysics, volume 611A, 93-93 (2018/3-1)

VEGAS-SSS. II. Comparing the globular cluster systems in NGC 3115 and NGC 1399 using VEGAS and FDS survey data. The quest for a common genetic heritage of globular cluster systems.

CANTIELLO M., D'ABRUSCO R., SPAVONE M., PAOLILLO M., CAPACCIOLI M., LIMATOLA L., GRADO A., IODICE E., RAIMONDO G., NAPOLITANO N., BLAKESLEE J.P., BROCATO E., FORBES D.A., HILKER M., MIESKE S., PELETIER R., VAN DE VEN G. and SCHIPANI P.

Abstract (from CDS):

We analyze the globular cluster (GC) systems in two very different galaxies, NGC 3115 and NGC 1399. With the papers of this series, we aim at highlighting common and different properties in the GC systems in galaxies covering a wide range of parameter space. We compare the GCs in NGC 3115 and NGC 1399 as derived from the analysis of one square degree u-, g-, and i-band images taken with the VST telescope as part of the VST early-type galaxy survey (VEGAS) and Fornax deep survey (FDS). We selected GC candidates using as reference the morpho-photometric and color properties of confirmed GCs. The surface density maps of GCs in NGC 3115 reveal a morphology similar to the light profile of field stars; the same is true when blue and red GCs are taken separately. The GC maps for NGC 1399 are richer in structure and confirm the existence of an intra-cluster GC component. We confirm the presence of a spatial offset in the NGC 1399 GC centroid and find that the centroid of the GCs for NGC 3115 coincides well with the galaxy center. Both GC systems show unambiguous color bimodality in (g-i) and (u-i); the color-color relations of the two GC systems are slightly different with NGC 3115 appearing more linear than NGC 1399. The azimuthal average of the radial density profiles in both galaxies reveals a larger spatial extent for the total GCs population with respect to the galaxy surface brightness profile. For both galaxies, the red GCs have radial density profiles compatible with the galaxy light profile, while the radial profiles for blue GCs are shallower. As for the specific frequency of GCs, SN, we find it is a factor of two higher in NGC 1399 than for NGC 3115; this is mainly the result of extra blue GCs. By inspecting the radial behavior of the specific frequency, SN(<r), for the total, blue, and red GCs, we find notable similarities between the trends for red GCs in the two targets. In spite of extremely different host environments, the red GCs in both cases appear closely linked to the light distribution of field stars. Blue GCs extend to larger galactocentric scales than red GCs, marking a significant difference between the two galaxies: the blue/red GCs and field stellar components of NGC 3115 appear well thermalized with each other and the blue GCs in NGC 1399 appear to fade into an unrelaxed intra-cluster GC population.

Abstract Copyright: © ESO 2018

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: star clusters: general - galaxies: individual: (NGC 1399, NGC 3115) - galaxies: clusters: individual: Fornax - galaxies: evolution - galaxies: stellar content

VizieR on-line data: <Available at CDS (J/A+A/611/A93): ngc3115.dat ngc1399.dat n3115all.dat n1399all.dat>

Nomenclature: Table A.1: [CDS2018] NGC 3115 UCD NN (Nos 1-24). Figs A.3-A.6, Table A.2: [CDS2018] NGC 3115 LSB N (Nos 1-8), [CDS2018] NGC 3115 Interacting N (Nos 1-4), [CDS2018] NGC 3115 Ring N (Nos 1-4), [CDS2018] NGC 3115 Lens N=1.

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

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 - 2020
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11052 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5761 1
3 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1215 1
4 NGC 1379 GiP 03 36 03.940 -35 26 28.23 12.17 12.04 10.91 10.60   ~ 243 1
5 NGC 1380 GiP 03 36 27.590 -34 58 34.68 11.32 10.94 9.93 9.37   ~ 381 1
6 NGC 1381 GiP 03 36 31.6595958424 -35 17 42.745665386 12.90 12.47 11.50 11.02   ~ 214 1
7 NGC 1386 GiP 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 466 1
8 NGC 1387 GiP 03 36 57.0325944947 -35 30 23.691986124 12.18 11.75 10.69 10.16   ~ 222 1
9 NGC 1382 GiP 03 37 08.953 -35 11 42.09 13.19 13.79 12.92 12.31   ~ 101 1
10 NGC 1389 GiP 03 37 11.7424496792 -35 44 45.871664087 12.80 12.39 11.50 10.99   ~ 175 1
11 NGC 1396 GiG 03 38 06.5660885410 -35 26 23.636856735   14.80       ~ 80 1
12 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1463 1
13 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1568 0
14 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 674 1
15 GALEXMSC J033951.22-353728.2 UV 03 39 51.22 -35 37 28.2           ~ 1 0
16 [CDS2018] NGC 3115 Ring 1 LeI 10 03 06.5376 -07 25 14.026           ~ 1 0
17 [CDS2018] NGC 3115 Interacting 2 IG 10 03 07.4088 -08 08 25.106           ~ 1 0
18 [CDS2018] NGC 3115 Interacting 3 IG 10 03 47.1744 -07 27 49.490           ~ 1 0
19 [CDS2018] NGC 3115 LSB 6 G 10 05 09.7944 -07 32 23.000           ~ 1 0
20 [CDS2018] NGC 3115 LSB 7 G 10 05 12.0288 -07 32 57.313           ~ 1 0
21 NGC 3115 GiG 10 05 13.978 -07 43 06.89   11   9.37   ~ 936 2
22 [CDS2018] NGC 3115 Ring 2 LeI 10 05 14.0544 -08 02 37.231           ~ 1 0
23 [CDS2018] NGC 3115 LSB 4 G 10 05 25.3920 -07 43 42.165           ~ 1 0
24 [CDS2018] NGC 3115 LSB 5 G 10 05 27.8616 -07 43 50.001           ~ 1 0
25 UGCA 200 G 10 05 35.1 -07 45 00   17       ~ 26 1
26 [CDS2018] NGC 3115 Interacting 1 IG 10 05 39.2256 -07 28 25.173           ~ 1 0
27 NAME NGC 3115 DW1 GiG 10 05 41.5916956639 -07 58 53.592496977   14.32 13.45     ~ 78 1
28 [CDS2018] NGC 3115 LSB 8 G 10 05 53.7456 -07 52 49.582           ~ 1 0
29 [CDS2018] NGC 3115 LSB 1 G 10 06 12.6936 -07 30 00.608           ~ 1 0
30 [CDS2018] NGC 3115 Ring 4 LeI 10 06 25.5744 -07 30 26.087           ~ 1 0
31 [CDS2018] NGC 3115 LSB 2 G 10 06 26.6832 -07 32 58.437           ~ 1 0
32 [CDS2018] NGC 3115 Ring 3 LeI 10 06 29.4216 -07 36 33.141           ~ 1 0
33 [CDS2018] NGC 3115 LSB 3 G 10 06 33.6960 -07 30 34.508           ~ 1 0
34 [CDS2018] NGC 3115 Interacting 4 IG 10 06 44.0232 -07 42 17.490           ~ 1 0
35 [CDS2018] NGC 3115 Lens gLS 10 06 52.3464 -07 55 37.081           ~ 1 0
36 NAME Sex A H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 656 2
37 NAME M96 Group GrG 10 48 +13.3           ~ 281 0
38 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 800 0
39 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1971 2
40 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6283 3
41 NGC 4494 GiP 12 31 24.034 +25 46 29.93   10.55 9.74     ~ 451 0
42 M 104 LIN 12 39 59.43185 -11 37 22.9954 9.51 9.55 8.00 8.05   ~ 1284 3
43 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 4030 3
44 NAME Local Group GrG ~ ~           ~ 7072 0

    Equat.    Gal    SGal    Ecl

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2020.10.23-07:40:02

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