2018A&A...619A.155S


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.14CET21:33:59

2018A&A...619A.155S - Astronomy and Astrophysics, volume 619A, 155-155 (2018/11-1)

Open cluster kinematics with Gaia DR2.

SOUBIRAN C., CANTAT-GAUDIN T., ROMERO-GOMEZ M., CASAMIQUELA L., JORDI C., VALLENARI A., ANTOJA T., BALAGUER-NUNEZ L., BOSSINI D., BRAGAGLIA A., CARRERA R., CASTRO-GINARD A., FIGUERAS F., HEITER U., KATZ D., KRONE-MARTINS A., LE CAMPION J.-F., MOITINHO A. and SORDO R.

Abstract (from CDS):


Context. Open clusters are very good tracers of the evolution of the Galactic disc. Thanks to Gaia, their kinematics can be investigated with an unprecedented precision and accuracy.
Aims. The distribution of open clusters in the 6D phase space is revisited with Gaia DR2.
Methods. The weighted mean radial velocity of open clusters was determined, using the most probable members available from a previous astrometric investigation that also provided mean parallaxes and proper motions. Those parameters, all derived from Gaia DR2 only, were combined to provide the 6D phase-space information of 861 clusters. The velocity distribution of nearby clusters was investigated, as well as the spatial and velocity distributions of the whole sample as a function of age. A high-quality subsample was used to investigate some possible pairs and groups of clusters sharing the same Galactic position and velocity.
Results. For the high-quality sample of 406 clusters, the median uncertainty of the weighted mean radial velocity is 0.5km/s. The accuracy, assessed by comparison to ground-based high-resolution spectroscopy, is better than 1km/s. Open clusters nicely follow the velocity distribution of field stars in the close solar neighbourhood as previously revealed by Gaia DR2. As expected, the vertical distribution of young clusters is very flat, but the novelty is the high precision to which this can be seen. The dispersion of vertical velocities of young clusters is at the level of 5km/s. Clusters older than 1 Gyr span distances to the Galactic plane of up to 1kpc with a vertical velocity dispersion of 14km/s, typical of the thin disc. Five pairs of clusters and one group with five members might be physically related. Other binary candidates that have been identified previously are found to be chance alignments.

Abstract Copyright: © ESO 2018

Journal keyword(s): stars: kinematics and dynamics - Galaxy: kinematics and dynamics - open clusters and associations: general

VizieR on-line data: <Available at CDS (J/A+A/619/A155): oc.dat>

Errata: erratum vol. 623, art. C2 (2019)

Status in Simbad:  being processed

Simbad objects: 92

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Number of rows : 92

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 [KPR2004b] 4 OpC 00 10 34.00 +58 45 36.0           ~ 20 0
2 NAME Skiff J0058+68.4 OpC 00 58 24 +68 28.0           ~ 9 0
3 Cl Stock 2 OpC 02 14 43 +59 29.1           ~ 93 0
4 NGC 869 OpC 02 19 00 +57 07.7           ~ 418 0
5 NGC 884 OpC 02 22 23 +57 07.5           ~ 437 0
6 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5386 1
7 C 0307+630 OpC 03 11 48 +63 15.0     7.0     ~ 27 0
8 C 0312+598 OpC 03 16 11 +60 06.9           ~ 23 0
9 Cl Alessi 13 OpC 03 21 42 -36 18.0           ~ 38 0
10 NGC 1333 SFR 03 28 55 +31 22.2   10.9       ~ 1182 1
11 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2913 0
12 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2587 0
13 NGC 1662 OpC 04 48 27 +10 56.2   7.0 6.4     ~ 98 0
14 Cl Berkeley 14 OpC 05 00 12 +43 28.0           ~ 29 1
15 Cl Berkeley 17 OpC 05 20 37 +30 35.4           ~ 130 0
16 NAME 25 Ori Group OpC 05 24 36 +01 48.0           ~ 82 1
17 [KPR2005] 19 OpC 05 27 47 -01 58.8           ~ 23 0
18 [KPR2005] 21 OpC 05 28 59 +03 39.0           ~ 26 0
19 C 0535+379 OpC 05 39 00 +37 56.0           ~ 23 0
20 NAME LDN 1641 South DNe 05 40 27.6 -07 27 28           ~ 47 1
21 NGC 2204 OpC 06 15 33 -18 39.9   9.35 8.6     ~ 124 0
22 NAME Gal Anticenter reg 06 17 +22.5           ~ 693 0
23 NGC 2232 OpC 06 27 15 -04 45.5           ~ 129 0
24 NGC 2243 OpC 06 29 34 -31 17.0   10.12 9.4     ~ 210 0
25 NGC 2237 Cl* 06 30 36.10 +04 58 50.6           ~ 67 2
26 NAME Rosette Nebula HII 06 31 40 +04 57.8           ~ 429 1
27 NGC 2244 OpC 06 31 55 +04 56.5   5.26 4.8     ~ 554 4
28 C 0635+020 OpC 06 38 35 +02 02.4     10.5     ~ 44 1
29 Cl Berkeley 29 OpC 06 53 04.2 +16 55 39   14.3       ~ 137 0
30 HD 50481 * 06 54 46.9602455535 +29 49 38.310452746   7.96 7.93     B8 9 0
31 [KPS2012] MWSC 1022 OpC 06 55 16 +29 43.8           ~ 7 0
32 HD 50662 ** 06 55 28.50748 +30 09 42.6947   9.21 8.88 8.58   G0 47 0
33 Cl Alessi 21 OpC 07 10 47 -09 20.2           ~ 20 0
34 C 0712-310 OpC 07 15 20 -30 41.0     3.6     ~ 45 0
35 Cl Collinder 140 OpC 07 24 27 -31 51.0           ~ 109 0
36 Cl Melotte 66 OpC 07 26 23 -47 40.0   8.73 7.8     ~ 168 0
37 NGC 2422 OpC 07 36 35 -14 29.0           ~ 201 0
38 NGC 2451A OpC 07 43 12 -38 24.0           ~ 80 0
39 NGC 2451B OpC 07 44 27 -37 40.0           ~ 59 0
40 NAME Herschel 1 OpC 07 47 02.00 +00 01 17.2           ~ 12 1
41 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 200 0
42 NAME Pozzo 1 OpC 08 09 32.00 -47 20 12.0           ~ 7 0
43 C 0829-385 OpC 08 31 16 -38 39.5           ~ 21 0
44 NGC 2632 OpC 08 40 24 +19 40.0           ~ 1182 0
45 NAME eta Cha Association MGr 08 42 06 -79 01.6           ~ 299 0
46 Cl Platais 8 OpC 09 09 30 -59 07.7           ~ 42 0
47 C 0920-560 OpC 09 21 55 -56 19.0           ~ 10 0
48 [KPS2012] MWSC 1676 OpC 09 29 51 -33 50.1           ~ 3 0
49 C 0929-527 OpC 09 31 23 -53 02.1           ~ 8 0
50 NGC 2925 OpC 09 33 11 -53 23.9     8.3     ~ 46 0
51 Cl Turner 5 MGr 09 33 51 -36 36.9           ~ 25 0
52 IC 2581 OpC 10 27 29 -57 37.0   4.79 4.3     ~ 112 0
53 IC 2602 OpC 10 42 58 -64 24.0           ~ 539 0
54 NGC 3532 OpC 11 05 39 -58 45.2           ~ 262 0
55 C 1112-573 OpC 11 14 15 -57 32.1     9.6     ~ 10 0
56 C 1155-642 OpC 11 58 40 -64 35.0   7.29 7.0     ~ 32 0
57 Cl Melotte 111 OpC 12 25 06.00 +26 06 00.0           ~ 396 0
58 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 371 2
59 C 1250-669 OpC 12 53 00.3 -67 10 28           ~ 7 0
60 NGC 5617 OpC 14 29 44 -60 42.7   7.00 6.3     ~ 79 0
61 Cl Trumpler 22 OpC 14 31.0 -61 10   8.48 7.9     ~ 42 0
62 C 1440+697 Cl* 14 40.9 +69 34           ~ 25 0
63 Teutsch 85 OpC 17 13 13.8 -39 42 22           ~ 11 0
64 Cl VDBH 222 OpC 17 18 45 -38 17.7           ~ 17 0
65 NAME Alessi 24 OpC 17 24 01.0 -62 51 48           ~ 10 0
66 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11045 0
67 Cl Mamajek 4 OpC 18 26 00 -51 00.0           ~ 9 0
68 NGC 6633 OpC 18 27 31.2 +06 34 12           ~ 316 0
69 C 1829-160 OpC 18 32 06 -16 00.6           ~ 8 0
70 Cl Alessi 40 OpC 18 36 35.00 -19 27 54.0           ~ 14 0
71 IC 4756 OpC 18 38 31.2 +05 29 24           ~ 193 0
72 IC 4729 Sy2 18 39 56.396 -67 25 32.54   13.59   11.84 13.0 ~ 43 0
73 NGC 6705 OpC 18 51 05 -06 16.2   6.32 5.8     ~ 350 0
74 C 1850-204 OpC 18 52 16 -20 12.2     6.3     ~ 55 0
75 NGC 6716 OpC 18 54 34 -19 54.1   7.70 7.5     ~ 51 0
76 [KPR2005] 101 OpC 19 13 37 +36 19.8           ~ 17 0
77 NGC 6774 OpC 19 16 42 -16 17.0           ~ 72 0
78 NGC 6791 OpC 19 20 53 +37 46.3   10.52 9.5     ~ 843 0
79 C 1933+251 OpC 19 35.8 +25 13     5.3     ~ 26 0
80 Teutsch 35 OpC 19 35 56.01 +35 40 06.0           ~ 3 0
81 NAME SU Cygni Cluster OpC 19 44 49 +29 15.9           ~ 24 0
82 [KPR2005] 110 OpC 20 03 00 +33 34.2           ~ 13 0
83 C 2008+336 OpC 20 10 00 +33 46.0           ~ 33 0
84 RSG 5 OpC 20 15 +45.6           ~ 3 0
85 C 2027+392 MGr 20 28.8 +39 16           ~ 20 0
86 NGC 7058 MGr 21 21.9 +50 49           ~ 15 0
87 NGC 7092 OpC 21 31 48 +48 26.0           ~ 185 0
88 IC 1396 OpC 21 39 00 +57 29.4           ~ 439 1
89 NGC 7160 OpC 21 53 40 +62 36.2   6.34 6.1     ~ 205 0
90 RSG 7 OpC 22 56 +58.8           ~ 5 0
91 RSG 8 OpC 22 58 +59.0           ~ 5 0
92 Cl Stock 12 OpC 23 35.6 +52 41           ~ 20 0

    Equat.    Gal    SGal    Ecl

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2019.11.14-21:33:59

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