2020MNRAS.498.2309S

Query : 2020MNRAS.498.2309S

2020MNRAS.498.2309S - Mon. Not. R. Astron. Soc., 498, 2309-2322 (2020/October-3)

The disintegrating old open cluster Czernik 3.

SHARMA S., GHOSH A., OJHA D.K., PANDEY R., SINHA T., PANDEY A.K., GHOSH S.K., PANWAR N. and PANDEY S.B.

Abstract (from CDS):

We have performed a detailed analysis of the Czernik 3 (Cz3) open cluster by using deep near-infrared photometry taken with TIRCAM2 on the 3.6 m Devasthal optical telescope along with the recently available high-quality proper motion data from the Gaia DR2 and deep photometric data from Pan-STARRS1. The cluster has a highly elongated morphology with fractal distribution of stars. The core and cluster radii of the cluster are estimated as 0.5 and 1.2 pc, respectively. We have identified 45 stars as cluster members using the Gaia proper motion data. The distance and age of the cluster are found to be 3.5 ± 0.9 kpc and 0.9+0.3–0.1 Gyr, respectively. The slope of the mass function `Γ' in the cluster region, in the mass range ∼0.95 <M/M☉ < 2.2, is found to be -1.01 ± 0.43. The cluster shows the signatures of mass segregation and is dynamically relaxed (dynamical age = 10 Myr). This along with its small size, big tidal radius, low density/large separation of stars, and elongated and distorted morphology indicates that the Cz3 is a loosely bound disintegrating cluster under the influence of external tidal interactions.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: kinematics and dynamics - stars: luminosity function, mass function - open clusters and associations: individual: (Czernik 3)

VizieR on-line data: <Available at CDS (J/MNRAS/498/2309): table1.dat table3.dat>

Nomenclature: Table 1: [SGO2020] NNN (Nos 1-151).

Simbad objects: 167

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Number of rows : 167
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 Gaia DR2 522946353153088512 * 01 02 56.2315503975 +62 48 40.128926017           ~ 1 0
3 [SGO2020] 138 * 01 02 57.609 +62 46 44.52           ~ 1 0
4 [SGO2020] 148 * 01 02 57.801 +62 47 27.64           ~ 1 0
5 Gaia DR2 522946250071639296 * 01 02 58.3719667740 +62 47 54.548574846           ~ 1 0
6 [SGO2020] 149 * 01 02 58.391 +62 47 16.04           ~ 1 0
7 [SGO2020] 109 * 01 02 58.494 +62 46 55.66           ~ 1 0
8 [SGO2020] 53 * 01 02 58.520 +62 46 33.57           ~ 1 0
9 [SGO2020] 52 * 01 02 58.526 +62 47 11.26           ~ 1 0
10 [SGO2020] 77 * 01 02 58.633 +62 47 02.17           ~ 1 0
11 [SGO2020] 67 * 01 02 58.987 +62 46 35.69           ~ 1 0
12 Gaia DR2 522946254366384384 * 01 02 59.3780596767 +62 48 15.174069488           ~ 1 0
13 [SGO2020] 78 * 01 02 59.504 +62 47 03.07           ~ 1 0
14 [SGO2020] 121 * 01 02 59.687 +62 47 30.85           ~ 1 0
15 [SGO2020] 123 * 01 02 59.716 +62 46 45.20           ~ 1 0
16 [SGO2020] 22 * 01 02 59.958 +62 46 56.09           ~ 1 0
17 [SGO2020] 44 * 01 02 59.9903685809 +62 46 52.495995279           ~ 3 0
18 [SGO2020] 135 * 01 03 00.060 +62 46 41.54           ~ 1 0
19 [SGO2020] 47 * 01 03 00.061 +62 47 26.70           ~ 1 0
20 [SGO2020] 19 * 01 03 00.073 +62 46 56.87           ~ 1 0
21 [SGO2020] 17 * 01 03 00.123 +62 46 56.55           ~ 1 0
22 [SGO2020] 107 * 01 03 00.153 +62 47 04.43           ~ 1 0
23 Gaia DR2 522946353152334464 * 01 03 00.1648525788 +62 48 21.699567562           ~ 1 0
24 [SGO2020] 25 * 01 03 00.3441266544 +62 46 54.779992788           ~ 4 0
25 [SGO2020] 127 * 01 03 00.592 +62 46 33.30           ~ 1 0
26 [SGO2020] 62 * 01 03 00.607 +62 46 37.63           ~ 1 0
27 [SGO2020] 108 * 01 03 00.776 +62 47 13.80           ~ 1 0
28 [SGO2020] 116 * 01 03 00.936 +62 47 14.45           ~ 1 0
29 [SGO2020] 13 * 01 03 00.969 +62 46 51.73           ~ 1 0
30 [SGO2020] 34 * 01 03 00.996 +62 46 48.28           ~ 1 0
31 Gaia DR2 522946353150868480 * 01 03 01.0220021046 +62 48 13.760349122           ~ 1 0
32 [SGO2020] 18 * 01 03 01.070 +62 46 48.02           ~ 1 0
33 [SGO2020] 97 * 01 03 01.197 +62 46 46.98           ~ 1 0
34 [SGO2020] 100 * 01 03 01.293 +62 47 07.85           ~ 1 0
35 [SGO2020] 96 * 01 03 01.329 +62 46 56.52           ~ 1 0
36 [SGO2020] 137 * 01 03 01.449 +62 46 52.91           ~ 1 0
37 [SGO2020] 99 * 01 03 01.454 +62 47 07.76           ~ 1 0
38 Gaia DR2 522946353152340096 * 01 03 01.5659329696 +62 48 33.286518881           ~ 1 0
39 [SGO2020] 76 * 01 03 01.702 +62 46 35.31           ~ 1 0
40 [SGO2020] 31 * 01 03 02.0672169149 +62 47 07.945508639           ~ 3 0
41 [SGO2020] 6 * 01 03 02.152 +62 47 35.72           ~ 1 0
42 [SGO2020] 112 * 01 03 02.325 +62 46 44.64           ~ 1 0
43 [SGO2020] 69 * 01 03 02.4777317017 +62 47 22.126856359           ~ 1 0
44 [SGO2020] 120 * 01 03 02.708 +62 47 03.53           ~ 1 0
45 [SGO2020] 128 * 01 03 02.909 +62 47 08.32           ~ 1 0
46 TYC 4021-1617-1 * 01 03 02.9356004160 +62 47 35.401119684   12.49 11.08     ~ 1 0
47 [SGO2020] 142 * 01 03 02.962 +62 47 19.95           ~ 1 0
48 Gaia DR3 522946185646946688 * 01 03 03.2334010729 +62 47 27.966979898           ~ 3 0
49 [SGO2020] 72 * 01 03 03.457 +62 47 07.63           ~ 1 0
50 [SGO2020] 73 * 01 03 03.7766281204 +62 46 35.835222189           ~ 1 0
51 [SGO2020] 145 * 01 03 03.833 +62 46 53.48           ~ 1 0
52 [SGO2020] 37 * 01 03 04.0208183184 +62 47 16.919985660           ~ 4 0
53 [SGO2020] 56 * 01 03 04.1881803781 +62 46 57.637113242           ~ 1 0
54 [SGO2020] 12 * 01 03 04.2536783328 +62 47 06.064872864           ~ 4 0
55 [SGO2020] 124 * 01 03 04.430 +62 47 00.67           ~ 1 0
56 [SGO2020] 33 * 01 03 04.7045540424 +62 46 54.959312532           ~ 4 0
57 [SGO2020] 146 * 01 03 04.707 +62 46 52.82           ~ 1 0
58 [SGO2020] 43 * 01 03 04.7095667688 +62 47 02.194108728           ~ 4 0
59 [SGO2020] 113 * 01 03 04.996 +62 47 27.36           ~ 1 0
60 [SGO2020] 111 * 01 03 05.046 +62 47 12.67           ~ 1 0
61 [SGO2020] 101 * 01 03 05.208 +62 46 30.93           ~ 1 0
62 [SGO2020] 126 * 01 03 05.348 +62 47 33.58           ~ 1 0
63 [SGO2020] 68 * 01 03 05.454 +62 47 13.29           ~ 1 0
64 [SGO2020] 136 * 01 03 05.457 +62 47 24.13           ~ 1 0
65 [SGO2020] 141 * 01 03 05.489 +62 47 24.32           ~ 1 0
66 Gaia DR2 522946151296819584 * 01 03 05.5531764043 +62 46 38.385894281           ~ 1 0
67 [SGO2020] 61 * 01 03 05.705 +62 46 37.15           ~ 1 0
68 [SGO2020] 130 * 01 03 05.778 +62 47 33.81           ~ 1 0
69 [SGO2020] 115 * 01 03 05.855 +62 47 24.19           ~ 1 0
70 [SGO2020] 133 * 01 03 05.880 +62 47 33.07           ~ 1 0
71 [SGO2020] 71 * 01 03 05.9895557982 +62 47 29.296528403           ~ 1 0
72 [SGO2020] 91 * 01 03 06.135 +62 47 31.91           ~ 1 0
73 [SGO2020] 14 * 01 03 06.1411610256 +62 47 10.661715708           ~ 4 0
74 [SGO2020] 51 * 01 03 06.1443330375 +62 46 52.097239510           ~ 1 0
75 [SGO2020] 7 * 01 03 06.2272385880 +62 46 55.508278368           ~ 4 0
76 [SGO2020] 150 * 01 03 06.348 +62 47 45.25           ~ 1 0
77 [SGO2020] 63 * 01 03 06.360 +62 47 26.49           ~ 1 0
78 [SGO2020] 74 * 01 03 06.407 +62 46 32.82           ~ 1 0
79 [SGO2020] 92 * 01 03 06.412 +62 47 05.83           ~ 1 0
80 [SGO2020] 88 * 01 03 06.467 +62 47 04.78           ~ 1 0
81 [SGO2020] 106 * 01 03 06.575 +62 46 26.59           ~ 1 0
82 [SGO2020] 103 * 01 03 06.870 +62 46 49.97           ~ 1 0
83 [SGO2020] 36 * 01 03 06.881 +62 46 11.76           ~ 1 0
84 [SGO2020] 98 * 01 03 06.957 +62 46 58.57           ~ 1 0
85 [SGO2020] 132 * 01 03 06.987 +62 46 46.09           ~ 1 0
86 [SGO2020] 89 * 01 03 07.048 +62 46 36.58           ~ 1 0
87 [SGO2020] 55 * 01 03 07.0904549977 +62 47 23.593212356           ~ 1 0
88 [SGO2020] 119 * 01 03 07.115 +62 46 15.85           ~ 1 0
89 [SGO2020] 4 * 01 03 07.1633093061 +62 47 20.788846678           ~ 3 0
90 Cl Czernik 3 OpC 01 03 07.2 +62 47 08   10.04 9.9     ~ 25 0
91 [SGO2020] 104 * 01 03 07.270 +62 46 47.88           ~ 1 0
92 Gaia DR3 522946185656552960 * 01 03 07.3382052192 +62 47 12.459487380           ~ 4 0
93 [SGO2020] 40 * 01 03 07.3875397691 +62 46 55.121770479           ~ 3 0
94 [SGO2020] 102 * 01 03 07.447 +62 47 31.38           ~ 1 0
95 [SGO2020] 131 * 01 03 07.494 +62 47 35.52           ~ 1 0
96 [SGO2020] 49 * 01 03 07.589 +62 46 32.20           ~ 1 0
97 Gaia DR2 522945945128836224 * 01 03 07.6955037192 +62 46 37.443866038           ~ 1 0
98 [SGO2020] 140 * 01 03 07.742 +62 46 40.66           ~ 1 0
99 [SGO2020] 90 * 01 03 07.8812613935 +62 47 13.002659320           ~ 1 0
100 [SGO2020] 30 * 01 03 07.9524161928 +62 47 18.668630508           ~ 4 0
101 [SGO2020] 42 * 01 03 08.0059621394 +62 47 08.172197230           ~ 3 0
102 UCAC4 764-011730 * 01 03 08.1153710856 +62 46 53.799509388       14.356   ~ 4 0
103 [SGO2020] 125 * 01 03 08.124 +62 47 33.46           ~ 1 0
104 [SGO2020] 118 * 01 03 08.184 +62 47 35.43           ~ 1 0
105 [SGO2020] 129 * 01 03 08.185 +62 47 40.25           ~ 1 0
106 [SGO2020] 75 * 01 03 08.230 +62 46 33.04           ~ 1 0
107 [SGO2020] 5 * 01 03 08.310 +62 46 21.03           ~ 1 0
108 [SGO2020] 87 * 01 03 08.346 +62 46 43.20           ~ 1 0
109 [SGO2020] 41 * 01 03 08.365 +62 47 32.38           ~ 1 0
110 [SGO2020] 16 * 01 03 08.3828205840 +62 47 21.042962520           ~ 4 0
111 UCAC4 764-011734 * 01 03 08.6200764389 +62 47 26.993063500       16.270   ~ 7 0
112 [SGO2020] 9 * 01 03 08.7615369432 +62 46 48.536591088           ~ 4 0
113 [SGO2020] 65 * 01 03 08.8789634966 +62 46 55.107872991           ~ 1 0
114 [SGO2020] 86 * 01 03 08.905 +62 46 28.10           ~ 1 0
115 [SGO2020] 82 * 01 03 08.989 +62 46 34.85           ~ 1 0
116 [SGO2020] 27 * 01 03 09.1456284096 +62 47 39.207161364           ~ 4 0
117 [SGO2020] 143 * 01 03 09.213 +62 47 27.52           ~ 1 0
118 [SGO2020] 151 * 01 03 09.441 +62 47 42.91           ~ 1 0
119 [SGO2020] 84 * 01 03 09.4697260499 +62 46 50.492191401           ~ 1 0
120 [SGO2020] 28 * 01 03 09.4765429670 +62 46 44.399674104           ~ 3 0
121 [SGO2020] 94 * 01 03 09.600 +62 47 40.99           ~ 1 0
122 [SGO2020] 39 * 01 03 09.6011650787 +62 46 48.872754022           ~ 1 0
123 [SGO2020] 15 * 01 03 09.6501628402 +62 46 45.276517057           ~ 1 0
124 [SGO2020] 35 * 01 03 09.7500518849 +62 46 57.498010976           ~ 3 0
125 [SGO2020] 24 * 01 03 09.7580177822 +62 46 42.875938474           ~ 3 0
126 [SGO2020] 21 * 01 03 09.8823687408 +62 46 52.632892020           ~ 4 0
127 UCAC4 764-011742 * 01 03 09.9957283511 +62 47 31.397358284       15.777   ~ 4 0
128 [SGO2020] 122 * 01 03 10.087 +62 47 14.16           ~ 1 0
129 [SGO2020] 85 * 01 03 10.183 +62 47 20.57           ~ 1 0
130 [SGO2020] 3 * 01 03 10.396 +62 47 04.71           ~ 1 0
131 [SGO2020] 83 * 01 03 10.614 +62 46 54.17           ~ 1 0
132 [SGO2020] 64 * 01 03 10.9272621759 +62 47 29.836136599           ~ 1 0
133 [SGO2020] 32 * 01 03 10.9931116464 +62 47 06.489786300           ~ 4 0
134 [SGO2020] 57 * 01 03 11.0856953225 +62 46 52.359823647           ~ 1 0
135 [SGO2020] 95 * 01 03 11.232 +62 47 25.87           ~ 1 0
136 [SGO2020] 11 * 01 03 11.2532458248 +62 47 30.855217776           ~ 4 0
137 [SGO2020] 80 * 01 03 11.4101678032 +62 46 49.115187721           ~ 1 0
138 [SGO2020] 29 * 01 03 11.4551886838 +62 47 28.651308189           ~ 3 0
139 [SGO2020] 26 * 01 03 11.474 +62 47 42.98           ~ 1 0
140 [SGO2020] 79 * 01 03 11.748 +62 46 58.32           ~ 1 0
141 [SGO2020] 23 * 01 03 11.9352178488 +62 47 12.844532616           ~ 4 0
142 [SGO2020] 93 * 01 03 12.1097565841 +62 46 27.266498310           ~ 1 0
143 [SGO2020] 59 * 01 03 12.178 +62 46 16.02           ~ 1 0
144 [SGO2020] 110 * 01 03 12.238 +62 46 21.92           ~ 1 0
145 [SGO2020] 114 * 01 03 12.303 +62 47 29.11           ~ 1 0
146 [SGO2020] 105 * 01 03 12.594 +62 46 15.05           ~ 1 0
147 [SGO2020] 81 * 01 03 12.618 +62 46 12.55           ~ 1 0
148 [SGO2020] 144 * 01 03 12.690 +62 47 47.67           ~ 1 0
149 [SGO2020] 66 * 01 03 12.758 +62 47 11.82           ~ 1 0
150 [SGO2020] 70 * 01 03 12.816 +62 47 13.43           ~ 1 0
151 [SGO2020] 117 * 01 03 12.893 +62 47 27.64           ~ 1 0
152 [SGO2020] 147 * 01 03 13.226 +62 46 31.35           ~ 1 0
153 [SGO2020] 60 * 01 03 13.373 +62 46 41.43           ~ 1 0
154 [SGO2020] 139 * 01 03 13.379 +62 47 25.13           ~ 1 0
155 [SGO2020] 38 * 01 03 13.7273351016 +62 46 18.730320240           ~ 4 0
156 [SGO2020] 134 * 01 03 13.811 +62 46 38.41           ~ 1 0
157 [SGO2020] 45 * 01 03 13.838 +62 46 21.62           ~ 1 0
158 [SGO2020] 48 * 01 03 13.864 +62 46 44.30           ~ 1 0
159 [SGO2020] 58 * 01 03 13.881 +62 47 30.84           ~ 1 0
160 [SGO2020] 54 * 01 03 14.214 +62 46 21.57           ~ 1 0
161 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
162 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 1001 0
163 NGC 3766 OpC 11 36 13.5 -61 36 42   5.66 5.3     ~ 222 0
164 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
165 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
166 NGC 6774 OpC 19 16 17.6 -16 20 45           ~ 258 0
167 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0

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