2014A&A...570A..48S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.11CEST21:12:09

2014A&A...570A..48S - Astronomy and Astrophysics, volume 570A, 48-48 (2014/10-1)

Gemini spectroscopy of the outer disk star cluster BH 176.

SHARINA M.E., DONZELLI C.J., DAVOUST E., SHIMANSKY V.V. and CHARBONNEL C.

Abstract (from CDS):

BH176 is an old metal-rich star cluster. It is spatially and kinematically consistent with belonging to the Monoceros Ring. It is larger in size and more distant from the Galactic plane than typical open clusters, and it does not belong to the Galactic bulge. Our aim is to determine the origin of this unique object by accurately determining its distance, metallicity, and age. The best way to reach this goal is to combine spectroscopic and photometric methods. We present medium-resolution observations of red clump and red giant branch stars in BH176 obtained with the Gemini South Multi-Object Spectrograph. We derive radial velocities, metallicities, effective temperatures, and surface gravities of the observed stars and use these parameters to distinguish member stars from field objects. We determine the following parameters for BH176: Vh=0±15km/s, [Fe/H]=-0.1±0.1, age 7±0.5Gyr, E(V-I)=0.79±0.03, distance 15.2±0.2kpc, α-element abundance [α/Fe]∼0.25dex (the mean of [Mg/Fe], and [Ca/Fe]). BH176 is a member of old Galactic open clusters that presumably belong to the thick disk. It may have originated as a massive star cluster after the encounter of the forming thin disk with a high-velocity gas cloud or as a satellite dwarf galaxy.

Abstract Copyright:

Journal keyword(s): globular clusters: general - globular clusters: individual: BH176 - open clusters and associations: general - Galaxy: structure - Galaxy: formation

Nomenclature: Table A.1: [SDD2014] NNa (Nos 1a-41a), [SDD2014] NNa (Nos 1b-39b).

Simbad objects: 112

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Number of rows : 112

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 188 OpC 00 48 26 +85 15.3           ~ 813 0
2 Cl King 2 OpC 00 51 00 +58 11.0   21.39 19.78     ~ 40 0
3 NAME Sgr Stream St* 02 22 +00.0           ~ 645 0
4 NGC 1193 OpC 03 05 56.0 +44 23 00     12.6     ~ 66 0
5 Cl Berkeley 17 OpC 05 20 37 +30 35.4           ~ 133 0
6 Cl King 22 OpC 05 22 24 +45 24.3           ~ 48 0
7 Cl Berkeley 70 OpC 05 25 44.6 +41 53 45           ~ 26 0
8 Cl Berkeley 20 OpC 05 32 37.0 +00 11 18           ~ 99 0
9 NAME Gal Anticenter reg 05 46 +28.9           ~ 720 0
10 C 0634+094 OpC 06 36 29 +09 28.2     10.9     ~ 73 0
11 C 0634+060 OpC 06 37 19.0 +05 57 55     4.6     ~ 31 0
12 Cl Berkeley 25 OpC 06 41 16 -16 29.2           ~ 44 0
13 Cl Berkeley 75 OpC 06 49 01.0 -23 59 48           ~ 40 0
14 NAME Saurer A Cluster OpC 07 20.9 +01 48           ~ 54 0
15 Cl Berkeley 39 OpC 07 46 42 -04 36.0           ~ 152 1
16 * ome Vir LP* 11 38 27.6072679 +08 08 03.466343 8.46 6.93 5.36     M4.5:III 99 0
17 Cl Collinder 261 OpC 12 38 11.5 -68 22 01     10.7     ~ 156 0
18 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2133 0
19 V* RX Boo AB* 14 24 11.6240733185 +25 42 13.381760051   9.23 8.60     M7.5-M8 417 0
20 [SDD2014] 31b RG* 15 38 54.032 -50 00 17.88     17.50   15.20 ~ 1 0
21 [SDD2014] 40a * 15 38 54.389 -50 01 36.20     18.84   17.03 ~ 1 0
22 [SDD2014] 33b * 15 38 54.725 -50 01 59.90     18.75   16.93 ~ 1 0
23 [SDD2014] 41a * 15 38 55.168 -50 04 51.98     18.10   15.77 ~ 1 0
24 [SDD2014] 34b * 15 38 55.435 -50 04 19.50     18.40   16.43 ~ 1 0
25 [SDD2014] 30a RG* 15 38 55.819 -50 01 09.80     17.72   15.25 ~ 2 0
26 [SDD2014] 35b * 15 38 56.078 -50 02 42.50     18.78   16.95 ~ 1 0
27 [SDD2014] 38b * 15 38 56.585 -50 05 06.38     18.22   15.82 ~ 1 0
28 [SDD2014] 24a RG* 15 38 56.585 -50 05 06.38     18.22   15.82 ~ 1 0
29 [SDD2014] 29a * 15 38 57.099 -50 02 48.90     17.96   15.89 ~ 1 0
30 [SDD2014] 36b * 15 38 57.308 -50 02 59.60     18.91   17.00 ~ 1 0
31 [SDD2014] 32b * 15 38 58.105 -50 01 33.20     18.62   16.67 ~ 1 0
32 [SDD2014] 28a * 15 38 58.105 -50 01 33.20     18.62   16.67 ~ 1 0
33 [SDD2014] 37b * 15 38 59.348 -50 03 48.40     18.68   16.79 ~ 1 0
34 [SDD2014] 33a * 15 38 59.419 -50 01 52.40     18.79   16.88 ~ 1 0
35 [SDD2014] 37a RG* 15 38 59.908 -50 04 13.70     17.38   15.24 ~ 1 0
36 [SDD2014] 39b RG* 15 38 59.908 -50 04 13.70     17.38   15.24 ~ 1 0
37 [SDD2014] 28b RG* 15 39 00.5748932961 -50 03 36.059823501     18.01   15.99 ~ 2 0
38 [SDD2014] 27a * 15 39 00.618 -50 03 30.10     18.81   17.02 ~ 1 0
39 [SDD2014] 29b * 15 39 01.008 -50 04 11.73     18.90   17.11 ~ 1 0
40 [SDD2014] 38a * 15 39 01.375 -50 01 52.31     18.86   16.93 ~ 1 0
41 [SDD2014] 27b RG* 15 39 01.749 -50 03 07.13     17.81   15.64 ~ 1 0
42 [SDD2014] 31a * 15 39 01.959 -50 03 43.43     17.50   15.37 ~ 1 0
43 [SDD2014] 36a RG* 15 39 02.478 -50 04 59.10     17.94   15.71 ~ 1 0
44 [SDD2014] 30b * 15 39 02.498 -50 02 48.63     18.79   16.97 ~ 1 0
45 [SDD2014] 26a * 15 39 03.110 -50 03 03.94     19.29   18.00 ~ 1 0
46 [SDD2014] 25b * 15 39 03.160 -50 02 43.10     18.78   17.34 ~ 1 0
47 [SDD2014] 24b * 15 39 03.749 -50 03 49.83     18.82   16.77 ~ 2 0
48 [SDD2014] 32a RG* 15 39 03.929 -50 02 51.70     18.02   15.84 ~ 1 0
49 [SDD2014] 26b * 15 39 04.718 -50 04 42.71     18.60   16.71 ~ 1 0
50 [SDD2014] 34a * 15 39 04.908 -50 01 46.80     18.76   16.87 ~ 1 0
51 [SDD2014] 13b RG* 15 39 05.295 -50 02 43.73     17.90   15.60 ~ 2 0
52 [SDD2014] 39a * 15 39 05.318 -50 02 37.23     18.99   17.09 ~ 1 0
53 ESO 224-8 OpC 15 39 05.4 -50 03 02           ~ 51 0
54 [SDD2014] 21b RG* 15 39 05.778 -50 03 12.70     17.58   15.26 ~ 1 0
55 [SDD2014] 25a RG* 15 39 05.899 -50 03 26.43     18.23   16.01 ~ 1 0
56 [SDD2014] 14b * 15 39 06.378 -50 02 55.30     18.80   16.94 ~ 1 0
57 [SDD2014] 35a * 15 39 06.535 -50 01 38.41     18.65   16.60 ~ 1 0
58 [SDD2014] 11b * 15 39 06.855 -50 02 53.51     18.37   14.03 ~ 1 0
59 [SDD2014] 13a * 15 39 06.999 -50 03 16.63     18.77   16.80 ~ 1 0
60 [SDD2014] 12b * 15 39 07.409 -50 03 35.83     18.81   16.87 ~ 1 0
61 [SDD2014] 12a * 15 39 07.829 -50 03 10.43     17.41   13.87 ~ 3 2
62 [SDD2014] 8b * 15 39 08.309 -50 03 34.81     18.61   16.76 ~ 1 0
63 [SDD2014] 11a * 15 39 08.698 -50 03 04.50     18.58   16.74 ~ 1 0
64 [SDD2014] 15b RG* 15 39 09.150 -50 02 20.70     17.73   15.57 ~ 1 0
65 [SDD2014] 14a * 15 39 09.249 -50 02 50.23     18.65   16.73 ~ 1 0
66 [SDD2014] 22b * 15 39 09.579 -50 02 50.73     18.69   16.77 ~ 1 0
67 Cl* VDBH 176 FMP 8251 * 15 39 10.060 -50 02 22.50     18.77   16.91 ~ 2 0
68 [SDD2014] 9b * 15 39 10.599 -50 03 03.75     19.29   14.30 ~ 1 0
69 [SDD2014] 21a * 15 39 10.609 -50 02 27.41     18.78   16.91 ~ 1 0
70 [SDD2014] 10a * 15 39 11.242 -50 03 14.81     18.65   16.74 ~ 1 0
71 [SDD2014] 10b * 15 39 11.258 -50 03 10.40     18.79   16.95 ~ 1 0
72 [SDD2014] 7b * 15 39 11.878 -50 04 14.78     19.05   16.95 ~ 1 0
73 [SDD2014] 8a * 15 39 12.019 -50 02 47.41     18.45   16.60 ~ 1 0
74 [SDD2014] 16b * 15 39 12.478 -50 04 15.20     18.56   16.57 ~ 2 0
75 [SDD2014] 18a RG* 15 39 12.6774510331 -50 01 59.912846490     17.95   15.67 ~ 3 0
76 [SDD2014] 15a RG* 15 39 13.199 -50 03 35.23     17.57   15.34 ~ 1 0
77 [SDD2014] 20b * 15 39 13.592 -50 02 58.73     18.99   17.04 ~ 1 0
78 [SDD2014] 19a * 15 39 13.732 -50 03 34.03     18.52   16.47 ~ 1 0
79 [SDD2014] 17b * 15 39 14.059 -50 03 24.86     18.92   17.06 ~ 1 0
80 [SDD2014] 19b RG* 15 39 14.615 -50 02 20.81     18.49   16.38 ~ 1 0
81 [SDD2014] 17a * 15 39 14.725 -50 00 41.88     19.11   17.11 ~ 1 0
82 [SDD2014] 18b RG* 15 39 15.089 -50 03 08.03     18.43   16.34 ~ 1 0
83 [SDD2014] 9a * 15 39 15.627 -50 02 36.85     17.41   15.97 ~ 1 0
84 [SDD2014] 23b * 15 39 16.369 -50 02 49.33     18.74   16.89 ~ 1 0
85 [SDD2014] 20a * 15 39 16.379 -50 03 09.73     18.92   16.87 ~ 1 0
86 [SDD2014] 16a * 15 39 17.168 -50 04 18.90     19.05   17.13 ~ 1 0
87 [SDD2014] 6b RG* 15 39 17.452 -50 01 20.81     16.74   14.50 ~ 1 0
88 [SDD2014] 23a * 15 39 17.685 -50 01 08.08     17.79   15.80 ~ 1 0
89 [SDD2014] 5b * 15 39 18.223 -50 03 39.70     18.02   16.66 ~ 1 0
90 [SDD2014] 7a * 15 39 18.376 -50 04 47.50     18.55   16.98 ~ 1 0
91 [SDD2014] 4b * 15 39 19.549 -50 03 16.51     18.94   17.03 ~ 1 0
92 [SDD2014] 5a RG* 15 39 20.099 -50 02 37.23     16.99   14.62 ~ 1 0
93 [SDD2014] 3b * 15 39 20.448 -50 01 13.30     18.30   16.36 ~ 1 0
94 [SDD2014] 6a * 15 39 20.685 -50 00 08.75     18.37   16.49 ~ 1 0
95 [SDD2014] 1b * 15 39 22.310 -50 02 46.22     17.71   15.67 ~ 1 0
96 [SDD2014] 3a * 15 39 22.4914187926 -50 01 15.441339427     17.91   16.33 ~ 1 0
97 [SDD2014] 4a * 15 39 23.0152403398 -50 00 38.189764757     18.26   16.76 ~ 1 0
98 [SDD2014] 1a RG* 15 39 23.835 -50 04 18.53     18.06   15.99 ~ 1 0
99 [SDD2014] 2a * 15 39 24.756 -50 03 31.22     18.60   17.02 ~ 1 0
100 [SDD2014] 2b * 15 39 25.082 -50 01 04.15     18.96   17.03 ~ 1 0
101 NGC 6253 OpC 16 59 05 -52 42.0     10.2     ~ 144 0
102 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11542 0
103 V* V988 Oph LP* 18 26 52.8374352991 +03 54 49.206929668   9.45 7.93     M5/6III 25 0
104 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1738 2
105 GCl 111 GlC 19 18 02.10 +18 34 18.0           ~ 90 0
106 NGC 6791 OpC 19 20 53 +37 46.3   10.52 9.5     ~ 869 0
107 * mu. Aql PM* 19 34 05.3535328 +07 22 44.179596 6.87 5.63 4.45 3.55 2.94 K3-IIIbFe0.5 251 1
108 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2235 2
109 V* FF Aqr Al* 22 00 36.4252746673 -02 44 26.868908849   10.23 9.408   8.245 G8III+sdO 106 0
110 LP 877-23 PM* 22 52 41.0353308036 -20 35 32.995847106   13.02 11.90     ~ 104 0
111 NAME Monoceros Stream St* ~ ~           ~ 311 0
112 NAME Galactic Bulge reg ~ ~           ~ 3391 0

    Equat.    Gal    SGal    Ecl

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2020.07.11-21:12:09

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