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J/A+A/516/A3     Proper motions of PM2000 open clusters   (Krone-Martins+, 2010)

Kinematic parameters and membership probabilities of open clusters in the Bordeaux PM2000 catalogue. Krone-Martins A., Soubiran C., Ducourant C., Teixeira R., Le Campion J.F. <Astron. Astrophys. 516, A3 (2010)> =2010A&A...516A...3K
ADC_Keywords: Clusters, open ; Proper motions Keywords: open clusters and associations: general - methods: data analysis - methods: statistical - proper motions Description: We present lists of proper-motions and kinematic membership probabilities in the region of 49 open clusters or possible open clusters. The stellar proper motions were taken from the Bordeaux PM2000 catalogue. The segregation between cluster and field stars and the assignment of membership probabilities was accomplished by applying a fully automated method based on parametrisations for the probability distribution functions and genetic algorithm optimisation heuristics associated with a derivative-based hill climbing algorithm for the likelihood optimization. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 76 49 Cluster sample table4.dat 129 49 Kinematic parameters table5.dat 146 27693 Membership probabilities
See also: B/ocl : Optically visible open clusters and candidates (Dias+ 2002-2010) I/300 : PM2000 Bordeaux Proper Motion catalogue (Ducourant+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 16 A16 --- Cluster Cluster name 17 A1 --- f_Cluster [*] Flag * indicating a recentered cluster 19- 28 A10 --- IAU Cluster IAU designation (C HHMM+DDd) 30- 31 I2 h RAh Right ascension (J2000) 33- 34 I2 min RAm Right ascension (J2000) 36- 37 I2 s RAs Right ascension (J2000) 39 A1 --- DE- Declination sign (J2000) 40- 41 I2 deg DEd Declination (J2000) 43- 44 I2 arcmin DEm Declination (J2000) 46- 47 I2 arcsec DEs Declination (J2000) 49- 55 F7.3 deg GLON Galactic longitude 57- 63 F7.3 deg GLAT Galactic latitude 65- 68 F4.1 arcmin Diam Diameter 70 A1 --- Cl [ABCD] Class of cluster (G1) 72- 76 A5 --- Rem Remarks (2)
Note (2): The following symbols are used: pocr = Possible Open Cluster Remnant (c.1) = No entry in the WEBDA database (c.2) = Classified as "not found", "dubious", "no cluster", or "non-existent NGC" in the Dias et al. (Cat. B/ocl) catalog (c.3) = Existence of some study that excludes the physical clustering of this cluster stars
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 16 A16 --- Cluster Cluster name 18- 23 F6.2 mas/yr pmRAc Cluster PDF mean proper motion in RA*cos(DE) 25- 28 F4.2 mas/yr e_pmRAc Fitting error on pmRAc 30- 35 F6.2 mas/yr pmDEc Cluster PDF mean proper motion in DE 37- 40 F4.2 mas/yr e_pmDEc Fitting error on pmDEc 42- 47 F6.2 mas/yr pmRA Field PDF mean proper motion in RA*cos(DE) 49- 52 F4.2 mas/yr e_pmRA Fitting error on pmRA 54- 59 F6.2 mas/yr pmDE Field PDF mean proper motion in DE 61- 64 F4.2 mas/yr e_pmDE Fitting error on pmDE 66- 71 F6.2 mas/yr sigpmRA Field PDF σ in RA*cos(DE) 73- 76 F4.2 mas/yr e_sigpmRA ?=0.00 Fitting error on sigpmRA (1) 78- 83 F6.2 mas/yr sigpmDE Field's PDF σ in DE 85- 88 F4.2 mas/yr e_sigpmDE Fitting error on sigpmDE 90- 94 F5.2 --- rhof Field's PDF correlation coefficient 96- 99 F4.2 --- e_rhof Fitting error on rho_f 101-104 F4.2 --- nc Fraction of the cluster stars 106-109 F4.2 --- e_nc Fitting error on nc 111-114 I4 --- nM Fitting number of cluster members 116 A1 --- Cl [ABCD] Class of cluster 118-129 A12 --- Qual Solution quality (Good, Poor or Intermediate)
Note (1): Fitting error on the field's Probability Distribution Function (PDF) σ in RA*cos(DE). A value of 0.00 indicates that it was not possible to estimate this error, because sigpmRA was at a border of the allowed parameter space.
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 16 A16 --- Cluster Cluster name 18- 24 I7 --- PM2000 PM2000 (Cat. I/300) identification number 26- 27 I2 h RAh Mean right ascension (J2000) 29- 30 I2 min RAm Mean right ascension (J2000) 32- 38 F7.4 s RAs Mean right ascension (J2000) 40 A1 --- DE- Mean declination sign (J2000) 41- 42 I2 deg DEd Mean declination (J2000) 44- 45 I2 arcmin DEm Mean declination (J2000) 47- 52 F6.3 arcsec DEs Mean declination (J2000) 54- 61 F8.3 arcsec e_RAs rms uncertainty on RA 63- 70 F8.3 arcsec e_DEs rms uncertainty on DE 72- 80 F9.1 mas/yr pmRA Proper motion in RA*cos(DE) 82- 90 F9.1 mas/yr pmDE Proper motion in Dec 92- 99 F8.1 mas/yr e_pmRA rms uncertainty on pmRA*cos(DEc 101-108 F8.1 mas/yr e_pmDE rms uncertainty on pmDE 110-115 F6.3 mag Vmag Apparent magnitude in Meridian band 117-122 F6.3 mag e_Vmag rms uncertainty on Vmag 125-140 A16 --- 2MASS 2MASS name 142-146 F5.1 % Mm Membership Probability
Global notes: Note (G1): For Class, the following symbols are used: A = Reference cluster B = Known cluster C = Known without proper-motion determination D = Others (including doubtful objects)
History: * 08-Apr-2010: Original version, with table5.dat containing 9574 stars * 03-Jul-2011: Larger table5 with 27693 stars supplied by the author. The old version of table 5, with 9574 stars is available as file named "table5.v01". * 22-Nov-2011: the "PM2000" column was corrected: values of PM2000 were missing the leftmost '1' digit in clusters Alessi 57, Berkeley 43, Dol-Dzim 7, Dolidze 35, Juchert 1, NGC 6525; and the leftmost '20' digit in the cluster Dias 8. Acknowledgements: Alberto Krone-Martins, algol(at)
(End) Patricia Vannier, Francois Ochsenbein [CDS] 08-Apr-2010
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