2021ApJS..253...38L

Query : 2021ApJS..253...38L

2021ApJS..253...38L - Astrophys. J., Suppl. Ser., 253, 38-38 (2021/April-0)

Revisiting the fundamental parameters of 49 new star clusters in Gaia DR2.

LI Z., DENG Y. and CHEN J.

Abstract (from CDS):

Reliable fundamental parameters of star clusters such as distance modulus, metallicity, age, extinction, and binary fraction are of key importance for astrophysical studies. Although a lot of new star clusters were identified from the data of, e.g., Gaia Data Release 2 (Gaia DR2), the fundamental parameters of many clusters were not determined reliably. This work makes use of the photometry data of Gaia DR2 and a good color-magnitude diagram (CMD) analysis tool, Powerful CMD, to determine the fundamental parameters of 49 new star clusters in detail. All CMDs are fitted carefully by both statistics and by eye, to make sure the CMDs are reproduced as well as possible. As a result, the fundamental parameters of 22 clusters are determined reliably, and those of the others are also determined as well as we can. Because the width of the main sequence in the color direction is used, combined with other widely used CMD features to constrain the fundamental parameters, the results of this work are more reliable than those reported by single-star isochrone fits. As a feature of this work, the primordial binary fractions and rotating star fractions of star clusters have been reported, which are useful for many works, in particular for some simulation research.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

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

Simbad objects: 79

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Number of rows : 79
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 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 NGC 188 OpC 00 47 14.8 +85 14 42           ~ 990 0
3 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
4 [LP2019] 1328 Cl* 00 58 31 +62 59.4           ~ 3 0
5 [LP2019] 1334 Cl* 02 01 42 +61 19.8           ~ 3 0
6 Cl Czernik 14 OpC 03 17 02.6 +58 36 38           ~ 25 0
7 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
8 UBC 56 OpC 04 39 19.2 +47 32 13           ~ 17 0
9 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
10 [LP2019] 2143 Cl* 06 03 50 +26 39.4           ~ 2 0
11 UBC 434 OpC 06 04 10.8 +28 03 00           ~ 10 0
12 NGC 2158 OpC 06 07 26.7 +24 05 53           ~ 317 0
13 UBC 211 OpC 06 21 02.9 -03 26 50           ~ 15 0
14 UBC 74 OpC 06 21 51.3 +22 24 29           ~ 12 0
15 [LP2019] 925 Cl* 06 24 27 +09 36.4           ~ 4 0
16 [KBT2017] Gaia 1 OpC 06 45 53.6 -16 43 34           ~ 20 0
17 UBC 213 OpC 06 51 22.8 -01 48 03           ~ 15 0
18 [LP2019] 2439 OpC 06 54 21 -05 53.6           ~ 6 0
19 [LP2019] 2385 Cl* 07 07 24 -37 50.5           ~ 3 0
20 [LP2019] 1399 OpC 07 09 31 -05 21.6           ~ 5 0
21 [LP2019] 2198 OpC 07 10 02.6 +04 39 09           ~ 15 0
22 Cl Melotte 66 OpC 07 26 19.2 -47 41 14   8.73       ~ 213 0
23 [LP2019] 198 OpC 07 28 28.3 -20 06 23           ~ 11 0
24 Cl Haffner 14 OpC 07 44 43.8 -28 23 22           ~ 38 0
25 Cl Berkeley 39 OpC 07 46 48.1 -04 39 59           ~ 209 1
26 Cl Haffner 17 OpC 07 51 35.1 -31 48 47           ~ 30 0
27 UBC 234 OpC 07 54 27.1 -27 31 00           ~ 11 0
28 [LP2019] 1429 OpC 07 57 27 -28 32.2           ~ 6 0
29 [LP2019] 1428 Cl* 07 57 35 -28 04.0           ~ 4 0
30 UBC 227 OpC 07 59 17.2 -19 07 33           ~ 11 0
31 NGC 2506 OpC 08 00 02.3 -10 46 22   8.28 7.6     ~ 313 0
32 [LP2019] 386 Cl* 08 11 29 -32 02.9           ~ 4 0
33 UBC 242 OpC 08 29 48.5 -41 18 15           ~ 14 0
34 [LP2019] 58 Cl* 08 39 50 -46 21.8           ~ 5 0
35 UBC 256 OpC 09 46 03.0 -52 29 23           ~ 18 0
36 [LP2019] 2059 OpC 10 12 47.0 -60 53 25           ~ 11 0
37 [LP2019] 5 OpC 10 24 29.3 -72 32 43           ~ 13 0
38 UBC 501 OpC 10 44 05.8 -58 05 42           ~ 10 0
39 [LP2019] 826 Cl* 10 57 20 -61 31.7           ~ 3 0
40 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
41 UBC 265 OpC 11 10 48.4 -56 49 17           ~ 15 0
42 NGC 3603 OpC 11 14 57.9 -61 14 32           ~ 1136 1
43 UBC 271 OpC 11 20 56.4 -59 18 20           ~ 15 0
44 UBC 278 OpC 11 41 54.9 -61 57 44           ~ 13 0
45 Cl Trumpler 20 OpC 12 39 33.0 -60 38 10           ~ 138 0
46 UBC 288 OpC 12 44 01.8 -58 05 48           ~ 14 0
47 NGC 4815 OpC 12 58 00.8 -64 57 36   9.61 8.6     ~ 110 0
48 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
49 [LP2019] 2309 OpC 13 59 46 -63 36.8           ~ 4 0
50 UBC 305 OpC 15 10 25.4 -60 30 17           ~ 10 0
51 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
52 UBC 306 OpC 15 46 19.5 -56 47 54           ~ 15 0
53 UBC 309 OpC 15 52 24.8 -55 24 57           ~ 14 0
54 UBC 543 OpC 16 22 53.5 -50 10 19           ~ 9 0
55 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
56 UBC 311 OpC 16 28 45.1 -54 56 54           ~ 12 0
57 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 857 0
58 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0
59 UBC 335 OpC 17 46 13.4 -29 11 53           ~ 11 0
60 NAME Quintuplet Cluster OpC 17 46 13.9 -28 49 48           ~ 561 0
61 ESO 456-38 GlC 18 01 49.10 -27 49 33.0           ~ 120 0
62 UBC 109 OpC 18 47 23.6 -05 15 26           ~ 11 0
63 UBC 117 OpC 18 48 25.2 +08 42 45           ~ 14 0
64 [LP2019] 2118 Cl* 18 49 15 -04 28.1           ~ 2 0
65 UBC 111 OpC 18 49 17.6 -04 28 15           ~ 12 0
66 NGC 6705 OpC 18 51 03.7 -06 16 18   6.32 5.8     ~ 442 0
67 UBC 112 OpC 18 55 53.1 -05 06 11           ~ 11 0
68 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
69 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
70 NGC 6819 OpC 19 41 18.3 +40 11 19   8.21 7.3     ~ 719 0
71 UBC 127 OpC 19 45 32.6 +21 09 29           ~ 12 0
72 UPK 82 OpC 19 53 11.5 +26 21 42           ~ 23 0
73 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
74 UBC 145 OpC 21 04 11.0 +42 03 54           ~ 10 0
75 UBC 161 OpC 21 16 19.5 +57 27 16           ~ 11 0
76 UBC 170 OpC 22 31 20.4 +58 03 27           ~ 17 0
77 Cl King 10 OpC 22 55 00.6 +59 10 07           ~ 50 0
78 UBC 171 OpC 23 05 38.0 +49 23 11           ~ 18 0
79 [LP2019] 888 Cl* 23 54 57 +60 51.5           ~ 4 0

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