2009A&A...500L..13D


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET03:38:52

2009A&A...500L..13D - Astronomy and Astrophysics, volume 500, L13-16 (2009/6-3)

Double or binary: on the multiplicity of open star clusters.

DE LA FUENTE MARCOS R. and DE LA FUENTE MARCOS C.

Abstract (from CDS):

Observations indicate that the fraction of potential binary star clusters in the Magellanic Clouds is about 10%. In contrast, it is widely accepted that the binary cluster frequency in the Galaxy disk is much lower. Here we investigate the multiplicity of clusters in the Milky Way disk to either confirm or disprove this dearth of binaries. We quantify the open cluster multiplicity using complete, volume-limited samples from WEBDA and NCOVOCC. At the Solar Circle, at least 12% of all open clusters appear to be experiencing some type of interaction with another cluster; i.e., are possible binaries. As in the Magellanic Clouds, the pair separation histogram hints at a bimodal distribution. Nearly 40% of identified pairs are probably primordial. Most of the remaining pairs could be undergoing some type of close encounter, perhaps as a result of orbital resonances. Confirming early theoretical predictions, the characteristic time scale for destruction of bound pairs in the disk is 200Myr, or one galactic orbit. Our results show that the fraction of possible binary clusters in the Galactic disk is comparable to that in the Magellanic Clouds.

Abstract Copyright:

Journal keyword(s): methods: statistical - Galaxy: open clusters and associations: general - stars: formation - Galaxy: disk - evolution - Galaxy: solar neighborhood

Simbad objects: 86

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Number of rows : 86

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 189 OpC 00 39 29 +61 06.9   9.07 8.8     ~ 30 0
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9698 1
3 [KPR2005] 4 OpC 00 53 10 +61 34.8           ~ 17 0
4 NGC 659 OpC 01 44.4 +60 40   8.40 7.9     ~ 74 0
5 NGC 663 OpC 01 46 09 +61 14.1   7.78 7.1     ~ 237 0
6 [KPR2005] 6 OpC 01 47 13 +57 43.8           ~ 22 0
7 C 0149+568 OpC 01 53.0 +57 04           ~ 21 0
8 NGC 869 OpC 02 19 00 +57 07.7           ~ 436 0
9 NGC 884 OpC 02 22 23 +57 07.5           ~ 452 0
10 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5857 1
11 [BCG93] 1 TT* 04 14 17.6094853639 +28 06 09.650035718 18.04         M4.5 76 0
12 NGC 1746 OpC 05 03 50 +23 46.2     6.1     ~ 36 0
13 NGC 1758 OpC 05 04 35.00 +23 47 54.0           ~ 32 0
14 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15197 1
15 NAME 25 Ori Group OpC 05 24 36 +01 48.0           ~ 100 1
16 [KPR2005] 18 OpC 05 26 10 +00 49.2           ~ 29 0
17 NAME HR 1833 Cluster OpC 05 28 44 +01 37.8           ~ 33 0
18 [KPR2005] 21 OpC 05 28 59 +03 39.0           ~ 34 0
19 NGC 1981 OpC 05 35 09 -04 25.9     4.2     ~ 75 0
20 M 42 HII 05 35 17.3 -05 23 28           ~ 3776 0
21 Cl Collinder 70 OpC 05 35 30 -01 06.0           ~ 58 0
22 NAME sigma Orionis Cluster MGr 05 38 42 -02 36.0           ~ 497 0
23 C 0631+081 OpC 06 34 12 +08 05.0           ~ 26 0
24 NGC 2251 OpC 06 34 38 +08 22.0   7.69 7.3     ~ 100 0
25 NGC 2302 OpC 06 51.9 -07 05           ~ 42 0
26 NGC 2306 OpC 06 54 25 -07 12.3           ~ 17 0
27 [KPR2005] 34 OpC 07 10.5 +06 04           ~ 11 0
28 NGC 2421 OpC 07 36.2 -20 37   8.69 8.3     ~ 48 0
29 ESO 560-3 OpC 07 36.8 -20 30           ~ 15 0
30 NGC 2428 OpC 07 39.4 -16 32           ~ 21 0
31 Cl Ruprecht 151 OpC 07 41.3 -16 17           ~ 23 0
32 NGC 2447 OpC 07 44 30 -23 51.4           ~ 120 1
33 NGC 2448 OpC 07 44 34 -24 40.8           ~ 24 1
34 NAME eta Cha Association MGr 08 42 06 -79 01.6           ~ 315 0
35 ESO 313-13 OpC 08 44 51 -41 14.0   7.01 6.7     ~ 56 0
36 [KPR2005] 50 OpC 08 50 17 -41 43.2           ~ 22 0
37 Cl VDBH 91 OpC 10 17.3 -58 42           ~ 17 0
38 [KPR2005] 59 OpC 10 20.2 -57 39           ~ 15 0
39 NGC 3228 OpC 10 21 22 -51 43.7           ~ 67 0
40 Cl Loden 46 OpC 10 23.2 -54 50           ~ 18 0
41 C 1026-579 OpC 10 28.4 -58 08           ~ 15 0
42 NGC 3293 OpC 10 35 49 -58 13.8   4.84 4.7     ~ 285 0
43 C 1035-584 OpC 10 36 05 -58 43.5           ~ 15 0
44 NAME Carraro 1 OpC 10 36 56 -58 45.0           ~ 9 0
45 NGC 3324 OpC 10 37 20 -58 38.5   6.91 6.7     ~ 101 1
46 Cl Ruprecht 91 OpC 10 47 38 -57 28.0           ~ 28 0
47 ESO 128-16 OpC 10 53.7 -58 14           ~ 12 0
48 Mrk 38 PaG 11 18 17.069 +53 44 59.51   15.2       ~ 39 0
49 NAME Alessi Teutsch 8 OpC 12 02.9 -60 55           ~ 16 0
50 Cl Loden 565 OpC 12 08 19 -60 39.0           ~ 22 0
51 ESO 132-14 OpC 13 36 30.0 -62 12 49           ~ 9 0
52 NGC 5281 OpC 13 46 35 -62 55.0   6.15 5.9     ~ 75 0
53 C 1356-581 OpC 13 59 39 -58 20.0           ~ 16 0
54 C 1402-594 OpC 14 05 42.00 -59 42 00.0           ~ 22 0
55 NGC 5617 OpC 14 29 44 -60 42.7   7.00 6.3     ~ 85 0
56 Cl Pismis 19 OpC 14 30 36 -60 53.1           ~ 26 0
57 Cl Trumpler 22 OpC 14 31.0 -61 10   8.48 7.9     ~ 48 0
58 [KPR2004b] 362 OpC 15 29 30 -51 12.5           ~ 20 0
59 [KPS2012] MWSC 2318 OpC 15 46 15 -52 22.7           ~ 8 0
60 NGC 6204 OpC 16 46 08 -47 01.2   8.51 8.2     ~ 114 0
61 Cl Hogg 22 OpC 16 46 37 -47 05.0           ~ 63 0
62 Cl Lynga 14 OpC 16 55 00 -45 14.4           ~ 39 0
63 NGC 6242 OpC 16 55.6 -39 28   7.09 6.4     ~ 70 0
64 Cl Trumpler 24 OpC 16 57 00 -40 40.0     8.6     ~ 65 0
65 NGC 6250 OpC 16 57 58 -45 56.6   6.14 5.9     ~ 70 0
66 [KPR2005] 90 OpC 17 39 07.2 -34 48 54           ~ 15 0
67 NGC 6405 OpC 17 40 20 -32 15.2           ~ 171 0
68 GAL 000.0+00.0 gam 17 45 39.60213 -29 00 22.0000           ~ 11999 0
69 NGC 6425 OpC 17 46 59 -31 31.8   7.90 7.2     ~ 49 0
70 C 1749-300 OpC 17 52.4 -30 06           ~ 25 0
71 NGC 6469 OpC 17 53.2 -22 19     8.2     ~ 21 0
72 Cl Ruprecht 139 OpC 18 01.0 -23 32           ~ 16 0
73 Cl Bochum 14 OpC 18 02 00 -23 42.3   10.72 9.3     ~ 34 0
74 Cl Collinder 469 OpC 18 16 34.0 -18 18 42   9.61 9.1     ~ 28 0
75 M 18 OpC 18 19 58 -17 06.1           ~ 74 0
76 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1508 0
77 [KPR2005] 100 OpC 19 01 37 +33 34.2           ~ 16 0
78 [KPR2005] 101 OpC 19 13 37 +36 19.8           ~ 20 0
79 NGC 6871 OpC 20 05 59 +35 46.6   5.43 5.2     ~ 202 0
80 C 2005+355 OpC 20 07 30 +35 41.0           ~ 24 0
81 Cl Biurakan 2 OpC 20 09 12 +35 29.0           ~ 38 0
82 C 2009+354 OpC 20 11.6 +35 36           ~ 20 0
83 [BBD2003] Object 1 OpC 20 33 10 +41 13.1           ~ 7 0
84 Cl Bica 2 OpC 20 33 15 +41 18.7           ~ 11 0
85 NAME Galactic Bar reg ~ ~           ~ 958 0
86 NAME Gould Belt PoG ~ ~           ~ 746 1

    Equat.    Gal    SGal    Ecl

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2021.03.02-03:38:52

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