2015AJ....150..200H

Query : 2015AJ....150..200H

2015AJ....150..200H - Astron. J., 150, 200 (2015/December-0)

Properties of the old open cluster Czernik 30.

HAYES C.R., FRIEL E.D., SLACK T.J. and BOBERG O.M.

Abstract (from CDS):

We present new photometric and spectroscopic data of the old open cluster Czernik 30. Wide field BVI photometry allows us to correct for the high field contamination by statistical subtraction to produce a color-magnitude diagram (CMD) that clearly reveals the cluster sequence. From spectra of stars in the cluster field obtained with the Hydra spectrograph on the Wisconsin-Indiana-Yale-NOAO 3.5 m telescope we determine a mean cluster velocity of +79.9±1.5 km/s and provide membership information that helps further define the cluster giant branch and red clump. Stellar abundances for the brighter giants in the cluster indicate a mean metallicity of [Fe/H] = -0.2±0.15. Fitting theoretical isochrones to the CMD we determine the following properties of Czernik 30: age = 2.8±0.3 Gyr, (m - M)v= 14.8±0.1, E(B - V) = 0.24±0.06, and E(V - I) = 0.36±0.04. Czernik 30 is an old, sub-solar metallicity cluster located at a Galactocentric radius of Rgc∼ 13.3 kpc. Given its age and position just beyond the transition to a flat abundance gradient seen in the open cluster population, Czernik 30 provides an interesting target for future observations.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: individual: Cz 30

VizieR on-line data: <Available at CDS (J/AJ/150/200): table3.dat table4.dat table5.dat table6.dat>

Nomenclature: Table 3: [HFS2015] NNNN (Nos 1-6294).

Simbad objects: 74

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Number of rows : 74
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 [HFS2015] 304 * 07 30 40.8683999856 -10 01 26.541461964   17.158 16.258   15.295 ~ 1 0
2 [HFS2015] 4700 * 07 30 42.2307434424 -09 50 10.436300196   16.812 16.124   15.263 ~ 1 0
3 [HFS2015] 546 * 07 30 42.9253571448 -09 58 34.762560276   17.771 16.514   15.034 ~ 1 0
4 [HFS2015] 4702 * 07 30 43.1046120168 -09 54 35.641518120   17.025 15.748   14.310 ~ 1 0
5 [HFS2015] 2940 * 07 30 44.0071039368 -09 51 04.234868820   16.740 15.711   14.511 ~ 1 0
6 [HFS2015] 4513 * 07 30 44.1894701040 -09 57 56.674141128   16.315 15.206   13.894 ~ 1 0
7 [HFS2015] 2099 * 07 30 45.0413202312 -09 59 52.206843660   17.282 15.992   14.484 ~ 1 0
8 [HFS2015] 3573 * 07 30 46.2080327016 -09 58 59.389883616   17.481 16.309   14.934 ~ 1 0
9 [HFS2015] 6255 * 07 30 47.6862128784 -09 53 47.512198464   15.166 13.918   12.546 ~ 1 0
10 [HFS2015] 2152 * 07 30 47.7467430672 -09 59 17.412517752   16.796 15.563   14.112 ~ 1 0
11 [HFS2015] 3580 * 07 30 48.490 -09 58 40.46   17.520 16.475   15.314 ~ 1 0
12 [HFS2015] 3027 * 07 30 49.3646853408 -09 50 04.843672512   17.225 16.466   15.511 ~ 1 0
13 [HFS2015] 2323 * 07 30 49.6822552488 -09 57 36.631008288   16.195 14.865   13.389 ~ 1 0
14 [HFS2015] 4596 * 07 30 50.1666196440 -10 02 37.289796144   15.129 14.55   13.855 ~ 1 0
15 [HFS2015] 2568 * 07 30 50.5559248440 -09 55 09.282137556   16.456 15.32   14.009 ~ 1 0
16 [HFS2015] 343 * 07 30 51.6166119168 -10 00 52.272349668   17.161 15.823   14.286 ~ 1 0
17 [HFS2015] 6269 * 07 30 51.7123326168 -09 51 30.311168184   15.684 14.446   13.070 ~ 1 0
18 [HFS2015] 3989 * 07 30 51.8670894360 -09 56 15.554769540   17.561 16.506   15.322 ~ 1 0
19 [HFS2015] 695 * 07 30 51.9438197568 -09 56 59.350622496   16.076 14.73   13.204 ~ 4 0
20 [HFS2015] 3036 * 07 30 54.2187149568 -09 50 01.111369380   17.359 16.552   15.634 ~ 1 0
21 [HFS2015] 3553 * 07 30 54.5288987208 -10 00 06.130443888   15.864 14.822   13.606 ~ 1 0
22 [HFS2015] 4413 * 07 30 55.0271952360 -09 51 33.525543600   19.900 15.654   18.572 ~ 1 0
23 [HFS2015] 426 * 07 30 55.4072046192 -09 59 56.029480116   16.125 14.941   13.651 ~ 1 0
24 [HFS2015] 881 * 07 30 56.6047963536 -09 54 41.600931120   17.064 16.055   14.901 ~ 1 0
25 [HFS2015] 1061 * 07 30 57.7024178736 -09 52 25.650857928   16.524 15.265   13.869 ~ 1 0
26 [HFS2015] 2772 * 07 30 59.0816326848 -09 53 02.585053932   17.433 16.222   14.856 ~ 1 0
27 [HFS2015] 585 * 07 30 59.6500336056 -09 58 00.527612772   17.853 16.723   15.367 ~ 1 0
28 [HFS2015] 720 * 07 30 59.7703866384 -09 56 41.983663272   17.539 16.581   15.508 ~ 1 0
29 GES J07310059-0957221 * 07 31 00.5917840728 -09 57 22.170920796   16.598 15.431   14.065 ~ 10 0
30 [HFS2015] 4475 * 07 31 00.8941472088 -09 55 00.184942740   17.569 16.585   15.367 ~ 1 0
31 [HFS2015] 3682 * 07 31 02.7242899104 -09 55 10.929294696   16.070 14.93   13.589 ~ 1 0
32 [HFS2015] 4220 * 07 31 02.7570566184 -09 49 50.217936240   16.974 16.227   15.253 ~ 1 0
33 [HFS2015] 2101 * 07 31 05.3994741792 -09 59 50.250053256   16.716 15.666   14.465 ~ 1 0
34 GES J07310653-0956001 * 07 31 06.5334160944 -09 56 00.232788984   16.344 15.127   13.713 ~ 10 0
35 GES J07310684-1000232 * 07 31 06.8449809912 -10 00 23.329447416   16.781 15.588   14.185 ~ 10 0
36 2MASS J07310726-0955033 HB* 07 31 07.2699216360 -09 55 03.418363056   16.629 15.48   14.183 ~ 11 0
37 2MASS J07310746-0955511 HB* 07 31 07.4623779696 -09 55 51.207009204   16.637 15.481   14.191 ~ 11 0
38 [HFS2015] 3942 * 07 31 07.6417105416 -09 58 52.356950004   16.485 15.31   13.965 ~ 1 0
39 [HFS2015] 255 * 07 31 07.7491551000 -10 02 12.030355104   17.292 16.087   14.729 ~ 1 0
40 2MASS J07310830-0956359 RG* 07 31 08.3058577584 -09 56 36.007570284   15.870 14.423   12.775 ~ 22 0
41 [HFS2015] 3069 * 07 31 09.0892268400 -09 49 33.445994556   17.915 16.986   15.953 ~ 1 0
42 GES J07310960-0957183 * 07 31 09.6063617328 -09 57 18.356588856   16.863 15.62   14.165 ~ 11 0
43 [HFS2015] 1009 * 07 31 09.9023636952 -09 53 02.512598568   16.548 15.386   14.049 ~ 1 0
44 [HFS2015] 3572 * 07 31 10.6778285232 -09 59 04.113016980   16.694 15.56   14.245 ~ 1 0
45 GES J07311072-0956335 * 07 31 10.7235018072 -09 56 33.522902052   16.260 15.071   13.733 ~ 9 0
46 [HFS2015] 794 * 07 31 10.8085114368 -09 55 49.001116620   17.393 16.22   14.852 ~ 5 0
47 2MASS J07311097-0956485 HB* 07 31 10.9696527144 -09 56 48.548425272   16.727 15.56   14.26 ~ 6 0
48 Cl Czernik 30 OpC 07 31 11.1 -09 56 47           ~ 50 0
49 [HFS2015] 3660 * 07 31 12.4046575032 -09 55 59.246337252   15.549 14.46   13.195 ~ 1 0
50 [HFS2015] 1225 * 07 31 12.6399701424 -09 50 26.419597152   16.079 14.7   13.187 ~ 1 0
51 GES J07311279-0959528 * 07 31 12.7979868240 -09 59 52.875645324   17.556 16.463   15.264 ~ 4 0
52 [HFS2015] 158 * 07 31 13.3162356864 -10 03 46.134790344   16.748 15.57   14.195 ~ 1 0
53 2MASS J07311590-0955415 RG* 07 31 15.9088820904 -09 55 41.589419628   16.168 14.808   13.266 ~ 19 0
54 [HFS2015] 3525 * 07 31 15.9140022576 -10 01 22.417776552   15.585 14.408   13.081 ~ 1 0
55 [HFS2015] 946 * 07 31 16.4179287240 -09 53 53.054383272   16.655 15.493   14.153 ~ 5 0
56 [HFS2015] 6290 * 07 31 17.440 -09 59 58.41   14.469 13.81   13.102 ~ 1 0
57 [HFS2015] 2769 * 07 31 17.6350398840 -09 53 03.907979880   15.897 14.575   13.099 ~ 1 0
58 [HFS2015] 275 * 07 31 18.1398668976 -10 01 49.707100920   16.991 15.66   13.967 ~ 1 0
59 [HFS2015] 6256 * 07 31 19.1764345848 -09 51 45.680796828   15.025 13.751   12.366 ~ 1 0
60 GES J07311933-0958052 * 07 31 19.3345548840 -09 58 05.185284348   17.640 16.519   15.207 ~ 11 0
61 [HFS2015] 3737 * 07 31 21.9658815672 -09 52 30.450052848   15.336 14.121   12.740 ~ 1 0
62 [HFS2015] 1228 * 07 31 22.9150272024 -09 50 21.290690688   16.483 15.511   14.402 ~ 1 0
63 2MASS J07312453-1001108 RG* 07 31 24.5358066432 -10 01 10.928385984   15.820 14.399   12.830 ~ 13 0
64 GES J07312459-1000199 * 07 31 24.5926989072 -10 00 19.865516256   16.970 15.867   14.533 ~ 4 0
65 [HFS2015] 3024 * 07 31 25.7075762520 -09 50 03.944871276   17.688 16.459   15.034 ~ 1 0
66 [HFS2015] 3762 * 07 31 28.0105998576 -09 51 16.214987376   16.399 15.27   13.910 ~ 1 0
67 [HFS2015] 972 * 07 31 28.7607810744 -09 53 30.868784772   16.200 15.185   13.999 ~ 1 0
68 [HFS2015] 386 * 07 31 30.9203979000 -10 00 24.393564396   17.219 15.898   14.318 ~ 1 0
69 2MASS J07313104-0959018 RG* 07 31 31.0415213616 -09 59 01.821849000   15.402 14.276   12.935 ~ 10 0
70 [HFS2015] 2385 * 07 31 31.6697554512 -09 56 53.695419720   17.758 16.588   15.261 ~ 1 0
71 [HFS2015] 3085 * 07 31 33.0176603952 -09 49 23.117766924   17.518 16.78   15.869 ~ 1 0
72 [HFS2015] 1215 * 07 31 33.2346617544 -09 50 36.110474952   17.251 16.208   15.070 ~ 1 0
73 [HFS2015] 6254 * 07 31 34.5673954608 -09 57 17.465853708   15.114 14.05   12.966 ~ 1 0
74 [HFS2015] 954 * 07 31 35.6565597480 -09 53 45.959857908   17.678 16.652   15.393 ~ 1 0

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