2023A&A...672A..12H

Query : 2023A&A...672A..12H

2023A&A...672A..12H - Astronomy and Astrophysics, volume 672A12 (2023/4-1)

A detection of the layered structure of nearby open clusters.

HU Q., ZHANG Y., ESAMDIN A., WANG H. and QIN M.

Abstract (from CDS):

We applied the newly developed rose diagram overlay method to detect the layered structure of 88 nearby open clusters (≤500 pc) on the three projections after the distance correction of their member stars, based on the catalog in literature. The results show that with the rose diagram overlay method, a total of 74 clusters in our sample have a layered structure, while the remaining clusters are without a clear layered structure. We for the first time defined the layered structure parameters for the sample clusters. Meanwhile, we found that the layered circle core area (s) has a strong positive correlation with the number of cluster members, while the kernel instability index (η) has a strong negative correlation with the number of cluster members. Our study provides a novel perspective for the detection of the layered structure of open clusters.

Abstract Copyright: © The Authors 2023

Journal keyword(s): methods: statistical - open clusters and associations: general - galaxies: stellar content

Errata: erratum vol. 674, art. C2 (2023)

Simbad objects: 89

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Number of rows : 89
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 Cl Blanco 1 OpC 00 03 04.1 -29 48 55           ~ 380 0
2 Cl Alessi 20 OpC 00 10 30.5 +58 45 18           ~ 55 0
3 NGC 752 OpC 01 56 53.7 +37 45 06           ~ 712 0
4 Cl Stock 2 OpC 02 15 47.8 +59 33 12           ~ 155 0
5 UPK 305 OpC 02 43 50.8 +39 44 39           ~ 18 0
6 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
7 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
8 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
9 UPK 292 OpC 03 45 12.2 +64 38 38           ~ 5 0
10 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
11 UBC 31 OpC 04 04 17.5 +33 00 19           ~ 24 0
12 NAME HIP 21974 Cluster OpC 04 37 00.6 +71 16 52           ~ 62 0
13 NGC 1662 OpC 04 48 48.5 +10 52 46   7.0 6.4     ~ 149 0
14 Cl Alessi 96 OpC 05 02 07.1 +37 30 41           ~ 30 0
15 NGC 1901 OpC 05 18 45.8 -68 09 13           ~ 123 0
16 NAME 25 Ori Group OpC 05 24 50.9 +01 41 38           ~ 195 1
17 [KPR2005] 19 OpC 05 28 06.0 -01 56 32           ~ 75 0
18 [KPR2005] 21 OpC 05 28 26.6 +03 33 00           ~ 75 0
19 UBC 17b OpC 05 32 54.9 -01 41 18           ~ 22 0
20 Cl Gulliver 6 OpC 05 33 01.0 -01 41 27           ~ 39 0
21 UBC 17a OpC 05 34 05.7 -01 25 38           ~ 25 0
22 Cl Collinder 69 OpC 05 35 32.1 +09 44 02     2.8     ~ 369 0
23 UBC 8 OpC 05 37 27.6 +57 07 48           ~ 23 0
24 Cl Stock 10 OpC 05 39 30.6 +37 49 20           ~ 59 0
25 NAME LDN 1641 South DNe 05 40 27.6 -07 27 28           ~ 65 1
26 UPK 422 OpC 05 52 26.0 -07 33 31           ~ 21 0
27 NGC 2232 OpC 06 27 45.6 -04 44 26           ~ 212 0
28 UPK 350 OpC 06 46 47.9 +48 48 54           ~ 17 0
29 Cl Alessi 36 OpC 07 06 57.9 -37 43 27           ~ 38 0
30 Cl Alessi 3 OpC 07 16 40.0 -46 16 35           ~ 71 0
31 Cl Collinder 135 OpC 07 17 23.6 -36 57 23           ~ 124 0
32 Cl Collinder 140 OpC 07 23 23.9 -31 58 15           ~ 154 0
33 NGC 2422 OpC 07 36 35.8 -14 30 15           ~ 275 0
34 UPK 540 OpC 07 38 56.7 -58 39 20           ~ 15 0
35 NGC 2451A OpC 07 42 55.4 -38 15 05           ~ 159 0
36 NGC 2451B OpC 07 44 22.6 -37 53 00           ~ 125 0
37 [KC2019] Theia 225 As* 07 47 15.7 +00 05 58           ~ 3 0
38 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
39 NAME Pozzo 1 OpC 08 09 18.7 -47 20 35           ~ 51 0
40 NGC 2547 OpC 08 10 01.5 -49 12 08           ~ 445 0
41 UPK 533 OpC 08 13 47.7 -52 26 50           ~ 17 0
42 Cl VDBH 23 OpC 08 14 02.5 -36 18 23           ~ 55 0
43 UPK 535 OpC 08 28 30.0 -50 53 14           ~ 15 0
44 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
45 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
46 UPK 545 OpC 08 43 48.3 -58 34 44           ~ 24 0
47 Cl Trumpler 10 OpC 08 47 46.4 -42 31 52           ~ 203 0
48 Cl Platais 8 OpC 09 06 04.4 -58 25 09           ~ 97 0
49 Cl Platais 9 OpC 09 11 49 -43 31.8           ~ 74 0
50 [KPR2005] 58 OpC 10 14 01.8 -55 06 13           ~ 53 0
51 NGC 3228 OpC 10 21 34.1 -51 45 39           ~ 98 0
52 Cl VDBH 99 OpC 10 38 23.9 -59 09 28           ~ 91 0
53 IC 2602 OpC 10 42 55.9 -64 25 22           ~ 735 0
54 Cl Alessi 5 OpC 10 43 20.9 -61 05 49           ~ 61 0
55 NGC 3532 OpC 11 05 33.9 -58 42 13           ~ 414 0
56 Cl Ruprecht 98 OpC 11 59 32.8 -64 31 32           ~ 65 0
57 UPK 606 OpC 14 24 28.8 -46 23 24           ~ 16 0
58 Cl VDBH 164 OpC 14 49 10.8 -66 24 23           ~ 58 0
59 UPK 640 OpC 16 41 18.4 -39 36 44           ~ 28 0
60 UPK 612 OpC 16 52 58.3 -67 52 50           ~ 31 0
61 Cl Alessi 24 OpC 17 23 12.7 -62 39 53           ~ 45 0
62 NGC 6405 OpC 17 40 14.5 -32 14 16           ~ 235 0
63 Cl Alessi 9 OpC 17 44 16.5 -47 03 45           ~ 66 0
64 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
65 IC 4665 OpC 17 46 04.0 +05 36 54           ~ 407 0
66 Cl Collinder 350 OpC 17 47 54.6 +01 31 22     6.1     ~ 73 0
67 NGC 6475 OpC 17 53 44.1 -34 49 36           ~ 413 0
68 Mamajek 4 OpC 18 13 40.3 -53 57 16           ~ 13 0
69 Cl Gulliver 20 OpC 18 14 43.9 +11 02 05           ~ 29 0
70 NGC 6633 OpC 18 27 30.2 +06 38 21           ~ 423 0
71 UBC 32 OpC 18 37 30.4 -14 10 19           ~ 20 0
72 IC 4756 OpC 18 38 39.0 +05 26 14           ~ 274 0
73 UPK 20 OpC 18 44 35.6 -14 27 54           ~ 13 0
74 [KC2019] Theia 518 As* 18 49 11.71 -18 18 29.2           ~ 3 0
75 NAME del Lyr Cluster OpC 18 54 11.2 +36 53 54   4.58 3.8     ~ 97 0
76 [KC2019] Theia 445 As* 19 10 42.7 +34 31 52           ~ 3 0
77 NGC 6774 OpC 19 16 17.6 -16 20 45           ~ 258 0
78 Teutsch 35 OpC 19 36 32.1 +35 45 00           ~ 44 0
79 Cl Stock 1 OpC 19 36 35.9 +25 07 31     5.3     ~ 72 0
80 Cl Alessi 10 OpC 20 04 51.3 -10 31 20           ~ 50 0
81 RSG 5 OpC 20 14 13.9 +45 34 26           ~ 43 0
82 Cl Roslund 6 OpC 20 29 00.4 +40 01 11           ~ 66 0
83 NGC 7092 OpC 21 31 04.0 +48 17 47           ~ 245 0
84 [KC2019] Theia 117 As* 22 41 44.12 +53 58 13.3           ~ 5 0
85 [KC2019] Theia 57 As* 22 52 44.05 +57 30 39.4           ~ 4 0
86 RSG 7 OpC 22 56 51.0 +59 26 36           ~ 34 0
87 RSG 8 OpC 22 58 57.1 +59 23 34           ~ 35 0
88 Cl Stock 12 OpC 23 35 40.6 +52 40 19           ~ 56 0
89 NAME Aveni-Hunter 1 OpC 23 36 38.7 +48 11 48           ~ 40 0

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