2018RAA....18...32G

Query : 2018RAA....18...32G

2018RAA....18...32G - Research in Astron. and astroph., 18, 32-32 (2018/March-0)

New open cluster candidates discovered in the XSTPS-GAC survey.

GUO J.-C., ZHANG H.-W., ZHANG H.-H., LIU X.-W., YUAN H.-B., HUANG Y., WANG S., CHEN L., ZHAO H.-B., LIU J.-F., CHEN B.-Q., XIANG M.-S., TIAN Z.-J., HUO Z.-Y. and WANG C.

Abstract (from CDS):

The Xuyi Schmidt Telescope Photometric Survey of the Galactic Anti-center (XSTPS-GAC) is a photometric sky survey that covers nearly 6 000 deg2 towards the Galactic Anti-center (GAC) in the g, r, i bands. Half of its survey field is located on the Galactic Anti-center disk, which makes XSTPS-GAC highly suitable to search for new open clusters in the GAC region. In this paper, we report new open cluster candidates discovered in this survey, as well as properties of these open cluster candidates, such as age, distance and reddening, derived by isochrone fitting in the color-magnitude diagram (CMD). These open cluster candidates are stellar density peaks detected in the star density maps by applying the method from Koposov et al. Each candidate is inspected in terms of its true color image composed from three XSTPS-GAC band images. Then its CMD is checked, in order to identify whether the central region stars have a clear isochrone-like trend differing from background stars. The parameters derived from isochrone fitting for these candidates are mainly based on three band photometry of XSTPS-GAC. Moreover, when these new candidates are able to be seen clearly in 2MASS data, their parameters are also derived based on the 2MASS (J - H, J) CMD. There are a total of 320 known open clusters rediscovered and 24 new open cluster candidates discovered in this work. Furthermore, the parameters of these new candidates, as well as another 11 previously known open clusters, are properly determined for the first time.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: general - Galaxy: structure - methods: data analysis

Simbad objects: 39

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Number of rows : 39
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
3 DSH J0314.8+5912 ? 03 14 49.0 +59 12 56           ~ 1 0
4 DSH J0352.1+5230 ? 03 52 04.0 +52 30 07           ~ 1 0
5 DSH J0353.2+5426 ? 03 53 11.0 +54 26 38           ~ 1 0
6 DSH J0425.3+4901 ? 04 25 17.0 +49 01 04           ~ 1 0
7 DSH J0438.2+4317 OpC 04 38 15.7 +43 17 08           ~ 2 0
8 DSH J0439.3+4811 ? 04 39 20.0 +48 11 57           ~ 1 0
9 DSH J0451.4+3859 ? 04 51 23.0 +38 59 29           ~ 1 0
10 DSH J0456.5+5017 ? 04 56 27.0 +50 17 41           ~ 1 0
11 DSH J0507.6+1734 OpC 05 07 39.0 +17 34 54           ~ 3 0
12 DSH J0518.7+4510 ? 05 18 41.0 +45 10 04           ~ 1 0
13 DSH J0548.0+2529 OpC 05 48 00.0 +25 29 53           ~ 3 1
14 DSH J0602.2+2608 OpC 06 02 14.0 +26 08 07           ~ 2 0
15 DSH J0606.6+1557 OpC 06 06 39.0 +15 57 30           ~ 2 0
16 DSH J0608.3+2804 ? 06 08 18.0 +28 04 13           ~ 1 0
17 DSH J0614.9+1645 ? 06 14 57.0 +16 45 06           ~ 1 0
18 Cl Alessi 50 OpC 06 22 02.8 +21 04 11           ~ 2 1
19 DSH J0625.7+1109 ? 06 25 41.0 +11 09 56           ~ 1 0
20 Cl Alessi 58 OpC 06 25 44.9 +19 54 53           ~ 2 1
21 DSH J0628.3+1135 ? 06 28 16.0 +11 35 13           ~ 1 0
22 DSH J0628.4+1225 ? 06 28 23.0 +12 25 54           ~ 1 0
23 DSH J0628.8+1455 OpC 06 28 49.5 +14 55 15           ~ 3 0
24 DSH J0632.1+1605 ? 06 32 04.0 +16 05 23           ~ 1 0
25 DSH J0634.6-0851 ? 06 34 37.0 -08 51 59           ~ 1 0
26 DSH J0642.4-0130 ? 06 42 23.0 -01 30 47           ~ 1 0
27 DSH J0643.2-0451 ? 06 43 13.0 -04 51 46           ~ 1 0
28 DSH J0643.7-0051 OpC 06 43 43.5 -00 51 25           ~ 2 1
29 DSH J0643.9+0116 ? 06 43 52.0 +01 16 55           ~ 1 0
30 DSH J0644.9-0926 ? 06 44 51.0 -09 26 02           ~ 1 0
31 DSH J0649.5+1202 OpC 06 49 28.0 +12 02 46           ~ 7 0
32 DSH J0651.4-0148 OpC 06 51 24.7 -01 48 26           ~ 2 0
33 DSH J0651.9-1127 ? 06 51 55.0 -11 27 42           ~ 1 0
34 DSH J0702.8-0204 OpC 07 02 49.0 -02 04 25           ~ 7 0
35 DSH J0704.5-1115 OpC 07 04 31.0 -11 15 20           ~ 2 0
36 DSH J0705.4-0903 OpC 07 05 33.4 -09 01 34           ~ 7 0
37 DSH J0715.1-0653 ? 07 15 09.0 -06 53 23           ~ 1 0
38 Alessi J0715.6-0727 OpC 07 15 19.4 -07 26 06           ~ 4 0
39 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0

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