J/A+A/600/A106 RAVE open cluster pairs, groups and complexes (Conrad+, 2017)
A RAVE investigation on Galactic open clusters.
II. Open cluster pairs, groups and complexes.
Conrad C., Scholz R.-D., Kharchenko N.V., Piskunov A.E., Roeser S.,
Schilbach E., de Jong R.S., Schnurr O., Steinmetz M., Grebel E.K.,
Zwitter T., Bienayme O., Bland-Hawthorn J., Gibson B.K., Gilmore G.,
Kordopatis G., Kunder A., Navarro J.F., Parker Q., Reid W., Seabroke G.,
Siviero A., Watson F., Wyse R.
<Astron. Astrophys. 600, A106 (2017)>
=2017A&A...600A.106C 2017A&A...600A.106C (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Clusters, open ; Proper motions ; Radial velocities ;
Space velocities ; Abundances, [Fe/H]
Keywords: open clusters and associations: general -
stars: kinematics and dynamics - Galaxy: kinematics and dynamics -
stars: abundances - Galaxy: solar neighborhood
Abstract:
Galactic open clusters (OCs) mainly belong to the young stellar
population in the Milky Way disk, but are there groups and complexes
of OCs that possibly define an additional level in hierarchical star
formation? Current compilations are too incomplete to address this
question, especially regarding radial velocities (RVs) and
metallicities ([M/H]).
Here we present the parameters for the final working sample of 432
open clusters, as well as the mean parameters for the 19 detected
potential open cluster groupings.
Description:
The presented tables summarize the parameters for the clusters and the
mean values for the detected potential cluster groupings. The ages,
distances and proper motions were taken from the Catalogue of Open
Cluster Data (COCD; Kharchenko et al. 2005, Cat. J/A+A/438/1163,
J/A+A/440/403), while additional radial velocities and metallicities
were obtained from the Radial Velocity Experiment (RAVE; Kordopatis et
al. 2013AJ....146..134K 2013AJ....146..134K, Cat. III/272 ) and from the online
compilation provided by Dias et al. (2002, See B/ocl).
A description of the determination for the radial velocities and
metallicities can be found in Conrad et al. 2014A&A...562A..54C 2014A&A...562A..54C. The
potential groupings were identified using an adapted
Friends-of-Friends algorithm with two sets of linking lengths, namely
(100pc, 10km/s) and (100pc, 20km/s).
The table clupar.dat (combining Tables A.1 and A.2 from the Appendix
of our paper): Tables comprises the parameters collected for the final
working sample of 432 clusters with available radial velocities,
namely coordinates and proper motions in equatorial and galactic
coordinates, distances, ages, metallicities, as well as Cartesian
coordinates and velocities. The latter were computed through
converting the spherical parameters to Cartesian space with the sun as
point of origin.
The tables grpar_10.dat and grpar_20.dat (listed as two
parts in Table B.1 of the Appendix of our paper) contain the mean
values for the identified potential open cluster groupings for two
sets of linking lengths, 100pc and 10km/s (19 potential groupings)
and 100pc and 20km/s (41 potential groupings), respectively. These
were computed as simple mean, while the uncertainties were computed as
simple rms.
We list the counting number, the number of members, the COCD number
and name for each member, The mean Cartesian coordinates and
velocities, along with the uncertainties, the mean distances (with
uncertainties), the mean logarithmic ages (with uncertainties) and the
mean metallicities, where available (with uncertainties, if at least
two measurement were used).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
clupar.dat 196 432 Input parameters and cartesian parameters for
the final working sample (tables A1 and A2)
tableb1.dat 153 60 Parameters for the identified OC groups for two
sets of linking lengths, 100pc and 10km/s and
100pc and 20km/s
grpar_10.dat 117 58 *Parameters for the identified OC groups for
linking lenghts: 100pc and 10km/s (table B1)
grpar_20.dat 117 121 *Parameters for the identified OC groups for
linking lenghts: 100pc and 20km/s (table B1)
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Note on grpar_*.dat: Original files of tableb1.dat.
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See also:
B/ocl : Optically visible open clusters and Candidates (Dias+ 2002-13)
III/239 : CRVAD: Radial Velocities with Astrometric Data (Kharchenko+ 2004)
III/254 : CRVAD2: 2nd Cat. of RV with Astrometric Data (Kharchenko+, 2007)
III/272 : RAVE 4rd data release (Siebert+, 2013)
J/A+A/438/1163 : Catalogue of Open Cluster Data (COCD) (Kharchenko+, 2005)
J/A+A/440/403 : 109 new Galactic open clusters (Kharchenko+, 2005)
J/A+A/562/A54 : Galactic open clusters in RAVE (Conrad+, 2014)
Byte-by-byte Description of file: clupar.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq COCD sequential number
6- 23 A18 --- Name Name of the cluster
25- 30 F6.2 deg RAdeg Right ascension (J2000)
32- 37 F6.2 deg DEdeg Declination (J2000)
39- 44 F6.2 mas/yr pmRA Proper motion in right ascension
46- 49 F4.2 mas/yr e_pmRA Uncertainty for pmRA
51- 56 F6.2 mas/yr pmDE Proper motion in declination
58- 61 F4.2 mas/yr e_pmDE Uncertainty in pmDE
63- 68 F6.2 deg GLON Galactic longitude
70- 75 F6.2 deg GLAT Galactic latitude
77- 82 F6.2 mas/yr pmGLON Proper motion in Galactic longitude
84- 89 F6.2 mas/yr pmGLAT Proper motion in Galactic latitude
91- 96 F6.1 km/s RV Radial velocity
98-101 F4.1 km/s e_RV ?=-9.9 Uncertainty in RV
103-106 I4 pc d Distance
108-113 F6.3 kpc X Cartesian Coordinate in direction of
Galactic Anticenter
115-119 F5.3 kpc e_X Uncertainty in X
121-126 F6.3 kpc Y Cartesian Coordinate in direction of
Galactic rotation
128-132 F5.3 kpc e_Y Uncertainty in Y
134-139 F6.3 kpc Z Cartesian Coordinate in direction of
Galactic northpole
141-145 F5.3 kpc e_Z Uncertainty in Z
147-151 F5.1 km/s U Cartesian Velocity in direction of
Galactic Anticenter
153-156 F4.1 km/s e_U ?=-9.9 Uncertainty in U
158-162 F5.1 km/s V Cartesian Velocity in direction of
Galactic rotation
164-167 F4.1 km/s e_V ?=-9.9 Uncertainty in V
169-173 F5.1 km/s W Cartesian Velocity in direction of
Galactic northpole
175-178 F4.1 km/s e_W ?=-9.9 Uncertainty in W
180-183 F4.2 [yr] logt Logarithmic age
185-189 F5.2 [-] [M/H] ?=9.99 Metallicity
191-196 A6 --- r_[M/H] Reference for the metallicity (1)
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Note (1): References as follows:
A02 = Ann et al., 2002AJ....123..905A 2002AJ....123..905A
Cm85 = Cameron, 1985A&A...147...47C 1985A&A...147...47C
Cl89 = Claria et al., 1989A&AS...78..363C 1989A&AS...78..363C
Cl91 = Claria et al., 1991MNRAS.249..193C 1991MNRAS.249..193C
Cl96 = Claria et al., 1996PASP..108..672C 1996PASP..108..672C
Cl03A = Claria et al., 2003A&A...399..543C 2003A&A...399..543C, Cat. J/A+A/399/543
Cl03B = Claria et al., 2003A&A...409..541C 2003A&A...409..541C, Cat. J/A+A/409/541
CC14 = Conrad et al., 2014A&A...562A..54C 2014A&A...562A..54C, Cat. J/A+A/562/A54
G00 = Gratton, 2000ASPC..198..225G 2000ASPC..198..225G
Go00 = Gonzalez and Wallerstein, 2000AJ....119.1839G 2000AJ....119.1839G
L94 = Luck, 1994ApJS...91..309L 1994ApJS...91..309L
Ly81 = Lynga, The Catalogue of Open Star Clusters, 1981ADCBu...1...90L 1981ADCBu...1...90L
Ly84 = Lynga et al., 1984A&A...132...58L 1984A&A...132...58L
N80 = Nissen et al., 1980IAUS...85...51N 1980IAUS...85...51N
Pa86 = Palous et al., 1986A&A...162...54P 1986A&A...162...54P
Pr05 = Parisiet al., 2005MNRAS.363.1247P 2005MNRAS.363.1247P
Pn03 = Paunzen et al., 2003A&A...403..937P 2003A&A...403..937P, Cat. J/A+A/403/937
Pi95 = Piatti et al., 1995AJ....110.2813P 1995AJ....110.2813P
T97 = Twarog et al., 1997AJ....114.2556T 1997AJ....114.2556T
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Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_Group [ab] Set of linking length (1)
3- 4 I2 --- Group Sequential number for our detected potential
open cluster groupings
6- 7 I2 --- NMemb Number of members in the potential open
cluster grouping
9- 13 I5 pc Xmean Mean Cartesian Coordinate in direction of
Galactic Anticenter
15- 16 I2 pc e_Xmean Uncertainty in Xmean
18- 22 I5 pc Ymean Mean Cartesian Coordinate in direction of
Galactic rotation
24- 25 I2 pc e_Ymean Uncertainty in Ymean
27- 30 I4 pc Zmean Mean Cartesian Coordinate in direction of
Galactic northpole
32- 33 I2 pc e_Zmean Uncertainty in Zmean
35- 39 F5.1 km/s Umean Mean Cartesian Velocity in direction of
Galactic Anticenter
41- 44 F4.1 km/s e_Umean Uncertainty in Umean
46- 50 F5.1 km/s Vmean Mean Cartesian Velocity in direction of
Galactic rotation
52- 55 F4.1 km/s e_Vmean Uncertainty in Vmean
57- 61 F5.1 km/s Wmean Mean Cartesian Velocity in direction of
Galactic northpole
63- 65 F3.1 km/s e_Wmean Uncertainty in Wmean
67- 70 I4 pc Dmean Mean Distance
72- 73 I2 pc e_Dmean Uncertainty in Dmean
75- 78 F4.2 [yr] logtmean Mean logarithmic age
80- 83 F4.2 [yr] e_logtmean Uncertainty in logtmean
85- 89 F5.2 [-] [M/H]mean ?=9.99 Mean metallicity
91- 94 F4.2 [-] e_[M/H]mean ?=9.99 Uncertainty in [M/H]mean
96 I1 --- o_[M/H]mean Numer of values used for [M/H]mean
98-153 A56 --- Memb COCD sequential number of the cluster
grouping members, separated by comma
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Note (1): Sets of linking length as follows:
a = 100pc and 10km/s
b = 100pc and 20km/s
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Byte-by-byte Description of file: grpar_10.dat grpar_20.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Group ? Sequential number for our detected potential
open cluster groupings
4- 5 I2 --- NMemb ? Number of members in the potential open
cluster grouping
7- 10 I4 --- Seq COCD Sequential number of the Cluster
grouping members
12- 28 A17 --- Name Name of the Cluster grouping members
30- 34 I5 pc Xmean ? Mean Cartesian Coordinate in direction of
Galactic Anticenter
36- 37 I2 pc e_Xmean ? Uncertainty in Xmean
39- 43 I5 pc Ymean ? Mean Cartesian Coordinate in direction of
Galactic rotation
45- 46 I2 pc e_Ymean ? Uncertainty in Ymean
48- 51 I4 pc Zmean ? Mean Cartesian Coordinate in direction of
Galactic northpole
53- 54 I2 pc e_Zmean ? Uncertainty in Zmean
56- 60 F5.1 km/s Umean ? Mean Cartesian Velocity in direction of
Galactic Anticenter
62- 65 F4.1 km/s e_Umean ? Uncertainty in Umean
67- 71 F5.1 km/s Vmean ? Mean Cartesian Velocity in direction of
Galactic rotation
73- 76 F4.1 km/s e_Vmean ? Uncertainty in Vmean
78- 82 F5.1 km/s Wmean ? Mean Cartesian Velocity in direction of
Galactic northpole
84- 86 F3.1 km/s e_Wmean ? Uncertainty in Wmean
88- 91 I4 pc Dmean ? Mean Distance
93- 94 I2 pc e_Dmean ? Uncertainty in Dmean
96- 99 F4.2 Gyr AGEmean ? Mean logarithmic age
101-104 F4.2 Gyr e_AGEmean ? Uncertainty in AGEmean
106-110 F5.2 [-] [M/H]mean ? Mean metallicity (NULL value: 9.99)
112-115 F4.2 [-] e_[M/H]mean ? Uncertainty in [M/H]mean (NULL value: 9.99)
117 I1 --- o_[M/H]mean ? Numer of values used for [M/H]mean
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Acknowledgements:
Ralf Scholz, rdscholz(at)aip.de
References:
Conrad et al., Paper I, 2014A&A...562A..54C 2014A&A...562A..54C, Cat. J/A+A/562/A54
(End) Patricia Vannier [CDS] 31-Jan-2017