2008A&A...486..771K


Query : 2008A&A...486..771K

2008A&A...486..771K - Astronomy and Astrophysics, volume 486, 771-777 (2008/8-2)

Automated search for Galactic star clusters in large. multiband surveys. I. Discovery of 15 new open clusters in the Galactic anticenter region.

KOPOSOV S.E., GLUSHKOVA E.V. and ZOLOTUKHIN I.Yu.

Abstract (from CDS):

According to some estimations, there are as many as 100000 open clusters in the Galaxy, but less than 2000 of them have been discovered, measured, and cataloged. We plan to undertake data mining of multiwavelength surveys to find new star clusters. We have developed a new method to search automatically for star clusters in very large stellar catalogs, which is based on convolution with density functions. We have applied this method to a subset of the Two Micron All Sky Survey catalog toward the Galactic anticenter. We also developed a method to verify whether detected stellar groups are real star clusters, which tests whether the stars that form the spatial density peak also fall onto a single isochrone in the color-magnitude diagram. By fitting an isochrone to the data, we estimate at the same time the main physical parameters of a cluster: age, distance, color excess. For the present paper, we carried out a detailed analysis of 88 overdensity peaks detected in a field of 16x16 degrees near the Galactic anticenter. From this analysis, 15 overdensities were confirmed to be new open clusters and the physical and structural parameters were determined for 12 of them; 10 of them were previously suspected to be open clusters by Kronberger (2006A&A...447..921K) and Froebrich (2007MNRAS.374..399F). The properties were also determined for 13 yet-unstudied known open clusters, thus almost tripling the sample of open clusters with studied parameters in the anticenter. The parameters determined with this method showed a good agreement with published data for a set of well-known clusters.

Abstract Copyright:

Journal keyword(s): Galaxy: structure - open clusters and associations: general - surveys - catalogs

Nomenclature: Tables 1, 2: [KGZ2008] NN N=14 among (Nos 7-82).

Simbad objects: 55

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Number of rows : 55
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NGC 752 OpC 01 56 54 +37 47.6           ~ 608 0
2 DSH J0455.7+3646 OpC 04 55 43.2 +36 46 55           ~ 9 0
3 Cl Dolidze 16 OpC 05 14 30 +32 42.4           ~ 20 0
4 Cl Berkeley 17 OpC 05 20 31 +30 34.4           ~ 162 0
5 NGC 1893 OpC 05 22 54 +33 26.6           ~ 255 0
6 C 0520+332 OpC 05 23 21.00 +33 30 29.0           ~ 4 0
7 Cl Berkeley 19 OpC 05 24 02.0 +29 33 57   12.33 11.4     ~ 54 0
8 Cl Berkeley 69 OpC 05 24 22 +32 36.4           ~ 41 0
9 NGC 1896 OpC 05 25.7 +29 18           ~ 14 1
10 Cl Czernik 21 OpC 05 26 41 +36 00.8           ~ 29 0
11 Cl Dolidze 20 OpC 05 27 45 +33 47.1           ~ 10 0
12 Cl Stock 8 OpC 05 28 07.5 +34 25 42           ~ 76 0
13 NGC 1907 OpC 05 28 08 +35 19.8   8.87 8.2     ~ 123 2
14 Cl Alicante 12 OpC 05 28 21.0 +34 46 30           ~ 24 0
15 M 38 OpC 05 28 40 +35 49.4   6.69 6.4     ~ 148 2
16 NGC 1931 OpC 05 31 23 +34 14.0     10.1     ~ 123 0
17 C 0530+264 OpC 05 33 34 +26 28.1           ~ 7 0
18 OCl 460.0 OpC 05 35 50 +25 57.0           ~ 11 0
19 M 36 OpC 05 36 20 +34 08.1   6.09 6.0     ~ 178 2
20 [FSR2007] 0814 OpC 05 36 50.6 +31 12 39           ~ 27 0
21 NGC 1996 OpC 05 38.0 +25 46           ~ 16 1
22 DSH J0539.4+3320 OpC 05 39 29.3 +33 20 46           ~ 20 0
23 [FSR2007] 0784 Cl* 05 40 44.1 +35 55 25           ~ 6 0
24 Cl Berkeley 71 OpC 05 40 56 +32 16.3           ~ 35 0
25 NGC 1961 LIN 05 42 04.6327819680 +69 22 42.411028872   11.73 10.99     ~ 322 3
26 [KGZ2008] 77 OpC 05 43 52.3 +21 42 37           ~ 9 0
27 DSH J0544.3+2848 OpC 05 44 23.0 +28 48 23           ~ 24 0
28 NAME Gal Anticenter reg 05 46 +28.9           ~ 838 0
29 [FSR2007] 0795 OpC 05 47 28.6 +35 25 56           ~ 20 0
30 Cl Basel 4 OpC 05 48 58 +30 11.4   9.56 9.1     ~ 36 0
31 Cl King 8 OpC 05 49 18 +33 38.0   11.90 11.2     ~ 62 0
32 Cl Czernik 23 OpC 05 50 06 +28 53.9           ~ 32 0
33 Cl Berkeley 72 OpC 05 50 14 +22 14.8           ~ 19 0
34 [FSR2007] 0849 Cl* 05 51 11.0 +25 46 41           ~ 6 0
35 Cl Berkeley 21 OpC 05 51 43 +21 48.7   12.26 11.1     ~ 111 0
36 [FSR2007] 0828 OpC 05 52 14.6 +29 55 09           ~ 22 0
37 M 37 OpC 05 52 18 +32 32.7   6.19 5.6     ~ 371 2
38 DSH J0553.8+2649 OpC 05 53 51.9 +26 49 47           ~ 24 0
39 Cl Czernik 24 OpC 05 55 24 +20 52.6           ~ 31 0
40 NAME Basel 11B OpC 05 58 11 +21 57.9   9.46 8.9     ~ 41 1
41 [FSR2007] 0802 OpC 06 00 56.2 +35 16 36           ~ 27 0
42 NGC 2129 OpC 06 01 06 +23 19.7   7.31 6.7     ~ 108 0
43 [FSR2007] 0839 OpC 06 03 58.0 +30 15 41           ~ 6 0
44 IC 2157 OpC 06 04 44 +24 05.5   8.91 8.4     ~ 45 0
45 NGC 2158 OpC 06 07 27 +24 05.9           ~ 279 0
46 [KGZ2008] 53 OpC 06 08 56.2 +26 15 49           ~ 18 0
47 NGC 2168 OpC 06 09 05 +24 20.2           ~ 525 0
48 [D2005c] DC8 OpC 06 09 20.8 +31 13 22           ~ 11 0
49 [FSR2007] 0869 OpC 06 10 05.0 +24 33 31           ~ 22 0
50 Cl Pismis 27 OpC 06 10 53 +20 37.0           ~ 20 0
51 DSH J0611.9+2040 OpC 06 11 58.1 +20 40 28           ~ 6 1
52 Cl Collinder 89 OpC 06 18 00 +23 38.0     5.7     ~ 25 0
53 [KGZ2008] 62 OpC 06 18 02.0 +24 42 38           ~ 7 0
54 [DBS2003] 83 Cl* 13 11 14.0 -62 45 04           ~ 8 0
55 [DBS2003] 84 Cl* 13 11 17.0 -62 45 46           ~ 6 0

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2023.01.29-16:51:20

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