2011AJ....141...27W

Query : 2011AJ....141...27W

2011AJ....141...27W - Astron. J., 141, 27 (2011/January-0)

Possible subgroups of globular clusters and planetary nebulae in NGC 5128.

WOODLEY K.A. and HARRIS W.E.

Abstract (from CDS):

We use recently compiled position and velocity data for the globular cluster and planetary nebula subsystems in NGC 5128, the nearby giant elliptical, to search for evidence of past dwarf-satellite accretion events. Beyond a 10' (∼11 kpc) radius in galactocentric distance, we find tentative evidence for four subgroups of globular clusters and four subgroups of planetary nebulae. These each have more than four members within a search radius of 2' and internal velocity dispersion of ≲ 40 km/s, typical parameters for a dwarf galaxy. In addition, two of the globular cluster groupings overlap with two of the planetary nebulae groupings, and two subgroupings also appear to overlap with previously known arc and shell features in the halo light. Simulation tests of our procedure indicate that the probability of finding false groups due to chance is <1%.

Abstract Copyright: ∼

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: individual: NGC 5128 - galaxies: interactions - galaxies: star clusters: general - globular clusters: general - planetary nebulae: general

Simbad objects: 64

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Number of rows : 64
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 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
4 NAME Sagittarius Stream St* 02 22 +00.0           ~ 1001 0
5 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
6 UGCA 86 AG? 03 59 48.30 +67 08 18.6   14.2 14.2     ~ 110 0
7 NGC 4093 LIN 12 05 51.4765188962 +20 31 19.053573291   15.3       ~ 59 1
8 [PFF2004b] f19p7 PN 13 24 44.05 -42 52 09.6           ~ 2 0
9 [PFF2004b] f19p6 PN 13 24 45.77 -42 51 29.7           ~ 2 0
10 [HFC93] 4608 PN 13 24 49.88 -42 52 46.5           ~ 4 0
11 [PFF2004b] ctr 624 PN 13 24 50.39 -42 53 22.3           ~ 2 0
12 [WHB2007] GC0067 GlC 13 24 51.4691563853 -43 12 11.111484819 19.64 19.33 18.50 18.01 17.42 ~ 15 0
13 [PFF2004b] ctr 622 PN 13 24 53.27 -42 53 26.5           ~ 3 0
14 [HSS2021] 224173 GlC 13 24 54.98 -43 11 36.9           ~ 3 0
15 [HSS2021] 224293 GlC 13 24 55.31 -43 10 39.3           ~ 3 0
16 [WHB2007] GC0083 GlC 13 24 56.0598140400 -43 10 16.366583100 21.34 21.03 20.45 20.05 19.62 ~ 11 0
17 [HSS2021] 224777 GlC 13 24 56.61 -43 12 23.6           ~ 3 0
18 [VHH81] 4 GlC 13 25 01.8018131256 -43 09 25.486559676 19.10 18.86 18.04 17.50 16.98 ~ 19 0
19 [WHB2007] GC0422 GlC 13 25 03.2724002112 -43 08 14.413394004           ~ 3 0
20 [HSS2021] 227289 GlC 13 25 03.37 -43 11 39.6 20.98 20.70 19.91 19.35 18.84 ~ 9 0
21 [PFF2004] gc 35 GlC 13 25 04.4480968776 -43 10 48.554937156 21.32 20.73 19.71 19.07 18.44 ~ 12 0
22 [HSS2021] 228034 GlC 13 25 05.46 -43 14 02.6 20.09 19.83 19.04 18.52 17.91 ~ 7 0
23 [R2001b] f2.GC-70 GlC 13 25 08.92 -43 08 53.5     20.30     ~ 11 0
24 [HSS2021] 231988 GlC 13 25 15.79 -42 49 15.1 20.92 20.67 19.85 19.30 18.78 ~ 6 0
25 [HSS2021] 232888 GlC 13 25 18.29 -42 47 52.4           ~ 3 0
26 [HSS2021] 234812 GlC 13 25 23.31 -42 48 47.7           ~ 3 0
27 [HSS2021] 235610 GlC 13 25 25.36 -42 49 27.5           ~ 3 0
28 [PFF2004b] f18p26 PN 13 25 26.80 -42 47 36.3           ~ 2 0
29 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
30 [HSS2021] 237523 GlC 13 25 30.72 -42 48 13.4 20.87 20.68 19.92 19.44 18.97 ~ 7 0
31 [PFF2004b] f18p18 PN 13 25 34.33 -42 46 11.2           ~ 2 0
32 [PFF2004b] f18p16 PN 13 25 38.19 -42 46 04.1           ~ 2 0
33 [PFF2004b] f18p17 PN 13 25 39.19 -42 45 23.9           ~ 2 0
34 [PFF2004b] f18p40 PN 13 25 40.30 -42 43 43.7           ~ 2 0
35 [PFF2004b] f18p15 PN 13 25 41.56 -42 45 41.2           ~ 2 0
36 [HSS2021] 243651 GlC 13 25 46.9609062864 -42 52 34.031738100           ~ 4 0
37 [HGH2004] 201.47829-42.88252 GlC 13 25 54.77 -42 52 57.2           ~ 6 0
38 [WHB2007] GC0534 GlC 13 25 55.34 -42 53 40.2           ~ 4 0
39 [PFF2004b] f08p9 PN 13 25 56.04 -43 09 24.7           ~ 2 0
40 [HGH2004] 201.48578-42.86295 GlC 13 25 56.59 -42 51 46.6 20.50 20.02 19.05 18.43 17.81 ~ 7 0
41 [HFC93] 4031 PN 13 25 56.86 -42 53 50.3           ~ 4 0
42 [HSS2021] 248114 GlC 13 25 58.8892732824 -42 53 18.852864144 20.74 20.43 19.58 19.06 18.52 ~ 13 0
43 [PFF2004b] f18p70 PN 13 25 59.03 -42 53 38.9           ~ 2 0
44 [HGH2004] 201.50931-43.14881 GlC 13 26 02.2319451384 -43 08 55.722929064 21.31 20.80 19.84 19.24 18.63 ~ 11 0
45 [HFC93] 1217 PN 13 26 02.60 -42 53 06.9           ~ 4 0
46 [HFC93] 1303 PN 13 26 05.40 -42 51 31.3           ~ 4 0
47 [HFC93] 5506 PN 13 26 06.10 -43 09 06.9           ~ 4 0
48 [PFF2004b] f07p8 PN 13 26 06.87 -43 07 36.0           ~ 2 0
49 [PFF2004b] f18p51 PN 13 26 07.43 -42 54 01.1           ~ 2 0
50 [HFC93] 5108 PN 13 26 09.17 -42 55 19.8           ~ 4 0
51 [HSS2021] 252348 GlC 13 26 09.5184782496 -43 08 52.452250152           ~ 4 0
52 [PFF2004b] f18p46 PN 13 26 10.88 -42 54 01.2           ~ 2 0
53 [PFF2004b] f17p34 PN 13 26 11.29 -42 52 39.6           ~ 1 0
54 [PFF2004b] f07p6 PN 13 26 11.34 -43 09 57.0           ~ 2 0
55 [HFC93] 5106 PN 13 26 11.58 -42 55 37.4           ~ 4 0
56 [HGH2004] 201.55341-43.15256 GlC 13 26 12.8149453440 -43 09 09.237617064 20.27 19.68 18.66 18.06 17.42 ~ 7 0
57 [HFC93] 5508 PN 13 26 13.02 -43 06 44.7           ~ 4 0
58 [PFF2004b] ctr 513 PN 13 26 14.27 -43 08 22.2           ~ 3 0
59 [GGH2006] N25 GlC 13 26 17.28 -43 09 57.9           ~ 5 0
60 [BBP2008] AAT125921 GlC 13 26 22.0733256528 -43 09 10.709764308 20.97 20.70 19.82 19.28 18.73 ~ 8 0
61 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
62 NGC 5906 GiG 15 15 53.687 +56 19 43.86   11.4       ~ 807 0
63 VV 29 IG 16 06 03.9082292784 +55 25 31.588100688   15.0       ~ 122 0
64 NAME Local Group GrG ~ ~           ~ 9325 0

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