2024AJ....167...44C

Query : 2024AJ....167...44C

2024AJ....167...44C - Astron. J., 167, 44 (2024/January-0)

Revisit of 77 Clusters Candidates with Multiple Main Sequences using Gaia DR3.

CHEN J., LI Z., ZHANG S., ZHAO W. and WU Y.

Abstract (from CDS):

Gaia DR3 data provide the latest and full astrometric data for more than 1.5 billion sources, and these allow us to revisit the 77 special open cluster candidates collected from LISC star cluster catalog. According to their unclear color-magnitude-diagram (CMD) morphology, they are difficult to be ensured as real open clusters (OCs), and their cluster properties are still poorly known. We perform a cluster census by reidentification for these clusters using pyUPMASK based on the photometric and astrometric stellar information. We have redetected these 77 objects and they should be real OCs, of which five clusters are potential binary clusters. Their basic parameters are obtained by fitting isochrones to observed CMDs. Our results show that their CMDs display more clean main sequences (MSs) and less member stars lying on the right of lower MSs relative to most of clusters in our initial sample, but broad MSs have not changed significantly. We suggest that efficient clustering algorithm combined with precision data can only partly reduce some stars lying on the right of lower MSs, and a simple stellar population of binary and rotating stars can partly reproduce multiple MS phenomena, including split and broad MSs.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galaxy clusters - Open star clusters

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 - 2026 		#notes
1 LISC 0182 ClG 00 28 40 -00 29.0           ~ 2 0
2 LISC 0192 ClG 00 39 24 -00 12.8           ~ 2 0
3 [BMA2003] BH 110 ClG 01 01 29 +00 45.6           ~ 2 0
4 LISC 0289 OpC 02 29 44 +58 06.0           ~ 10 0
5 IC 1848 OpC 02 51 19.4 +60 25 32   6.87 6.5     ~ 522 2
6 Cl Berkeley 9 OpC 03 32 39.8 +52 38 57           ~ 47 0
7 Cl Berkeley 68 OpC 04 44 13.8 +42 08 00           ~ 35 0
8 LISC 1974 Cl? 04 58 16 +43 02.6           ~ 1 0
9 LISC 1981 OpC 05 07 14 +41 06.7           ~ 2 0
10 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
11 LISC 1117 Cl? 06 31 59 +04 53.0           ~ 1 0
12 NGC 2244 OpC 06 32 06.9 +04 54 19           ~ 673 1
13 Alessi J0645.7+0037 OpC 06 44 44.3 -00 31 36           ~ 17 0
14 Cl Haffner 6 OpC 07 19 58.9 -13 09 22   9.97 9.2     ~ 46 0
15 Cl Haffner 10 OpC 07 28 37.4 -15 21 42   12.60 11.5     ~ 52 0
16 Cl Bica 388 OpC 08 01 36.1 -34 29 00           ~ 19 0
17 Cl Gulliver 2 OpC 08 11 36.5 -37 23 51           ~ 18 0
18 NGC 2546 OpC 08 12 39.8 -37 39 34   6.46 6.3     ~ 125 0
19 Cl Gulliver 36 OpC 08 12 41.5 -35 07 10           ~ 25 0
20 CWNU 1232 OpC 08 12 51 -34 14.5           ~ 2 0
21 LISC 0329 Cl? 08 15 19 -34 22.1           ~ 1 0
22 LISC 2134 Cl? 08 17 19 -33 09.5           ~ 1 0
23 Casado 4 OpC 08 23.2 -37 38           ~ 3 0
24 ESO 313-3 OpC 08 32 30.6 -41 59 32           ~ 18 0
25 Cl Pismis 8 OpC 08 41 36.2 -46 16 01   10.10 9.5     ~ 47 0
26 LISC 0185 Cl? 09 11 06 -52 45.5           ~ 1 0
27 LISC 0086 Cl? 09 17 15 -53 12.5           ~ 1 0
28 LISC 0184 Cl? 09 18 02 -53 22.9           ~ 1 0
29 NGC 2925 OpC 09 33 15.7 -53 24 39     8.3     ~ 80 0
30 NGC 2972 OpC 09 40 14.1 -50 19 36   10.72 9.9     ~ 65 0
31 NGC 3255 OpC 10 26 32.4 -60 40 30   11.54 11.0     ~ 36 0
32 Cl Bica 436 Cl? 10 29 05 -60 16.7           ~ 1 0
33 Cl Bica 430 Cl? 10 30 51 -58 13.7           ~ 1 0
34 LISC 1206 Cl? 10 33 15 -60 52.6           ~ 1 0
35 LISC 0364 Cl* 10 33 56.48 -59 43 58.0           ~ 1 0
36 DSH J1035.2-6041 OpC 10 35 12.1 -60 41 04           ~ 3 0
37 Ass Car OB 1 As* 10 38 -59.0           ~ 172 0
38 LISC 1582 Cl? 10 45 30 -59 59.2           ~ 1 0
39 LISC 1580 Cl? 10 50 19 -60 20.7           ~ 1 0
40 Cl Gulliver 40 OpC 10 52 17.9 -58 23 38           ~ 14 0
41 Ass Car OB 1f As* 10 52 42 -58 47.3           ~ 2 0
42 C 1051-620 OpC 10 52 50 -62 18.3           ~ 10 0
43 CWNU 1078 OpC 10 55 52 -60 24.6           ~ 17 0
44 Cl Trumpler 17 OpC 10 56 26.2 -59 13 38   8.93 8.4     ~ 55 0
45 Majaess 132 Cl* 10 58 05.23 -58 49 32.3           ~ 1 0
46 NGC 3496 OpC 10 59 31.8 -60 20 12   9.02 8.2     ~ 78 0
47 Cl Ruprecht 93 OpC 11 04 11.3 -61 21 59   8.05 7.7     ~ 48 1
48 Cl Alessi 91 Cl? 11 04 12 -60 09.7           ~ 1 0
49 LISC 1256 Cl? 11 04 50.8 -61 42 32           ~ 1 0
50 NGC 3532 OpC 11 05 33.9 -58 42 13           ~ 414 0
51 NAME Shorlin 1 OpC 11 05 46 -61 13.9           ~ 20 0
52 LISC 1257 Cl? 11 07 24 -61 44.9           ~ 1 0
53 Teutsch 143a OpC 11 08 33.8 -60 44 33           ~ 25 0
54 C 1107-602 Cl* 11 09.6 -60 35           ~ 15 0
55 Cl Trumpler 18 OpC 11 11 21.4 -60 38 36           ~ 98 0
56 NGC 3590 OpC 11 13 02.0 -60 47 22           ~ 91 0
57 C 1114-600 OpC 11 16 18 -60 14.7           ~ 10 0
58 Alessi J1121.8-6059 Cl? 11 22 36 -61 33.5           ~ 1 0
59 LISC 1613 Cl? 11 26 32.8 -61 21 18           ~ 1 0
60 Cl Stock 16 OpC 13 19 26.4 -62 37 19           ~ 95 0
61 LISC 2435 Cl? 16 36 01.6 -46 12 14           ~ 1 0
62 LISC 0107 Cl* 18 10 39.5 -26 02 00           ~ 1 0
63 LISC 0711 Cl? 18 12 09 -18 40.6           ~ 1 0
64 LISC 0214 Cl? 18 18 02.0 -11 33 18           ~ 2 0
65 LISC 1854 OpC 19 35 35 +20 07.5           ~ 9 0
66 LISC 1856 Cl? 19 36 14.5 +17 21 40           ~ 1 0
67 Teutsch 27 OpC 19 37 21.7 +18 41 57           ~ 18 1
68 LISC 1855 Cl? 19 39 22 +19 02.2           ~ 1 0
69 LISC 1892 Cl? 19 52 07 +27 36.9           ~ 1 0
70 Camargo 587 Cl? 19 52.5 +28 57           ~ 1 0
71 DSH J2001.9+3126 OpC 20 02 00.2 +31 25 06           ~ 18 0
72 Cl Roslund 6 OpC 20 29 00.4 +40 01 11           ~ 66 0
73 LISC 0778 OpC 20 47 07.8 +43 48 51           ~ 10 0
74 LISC 1908 OpC 21 02 13.5 +45 23 11           ~ 13 0
75 LISC 0792 Cl? 21 37 15.0 +51 29 46           ~ 2 0
76 LISC 0256 OpC 22 07 45.0 +53 06 28           ~ 29 0
77 IC 1434 OpC 22 10 30.8 +52 51 13     9.0     ~ 32 2
78 NAME SBB 4 OpC 22 23 24.30 +56 36 27.0           ~ 5 0
79 LISC 2739 OpC 22 42 29.1 +58 56 19           ~ 25 0
80 Cl Berkeley 98 OpC 22 42 37.9 +52 24 40           ~ 38 0
81 LISC 0271 Cl? 22 49 27 +57 13.4           ~ 1 0
82 NGC 7419 OpC 22 54 19.0 +60 48 50     13.0     ~ 113 0
83 NGC 7726 GiG 23 39 11.8975777632 +27 06 55.519852500   15.0       ~ 70 1
84 NGC 7762 OpC 23 49 51.3 +68 02 06           ~ 84 0
85 Ass Vel OB 1a As* ~ ~           ~ 3 0
86 Ass Car OB 4 * ~ ~           ~ 2 0

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