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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 76 49 Cluster sample
table4.dat 129 49 Kinematic parameters
table5.dat 146 27693 Membership probabilities
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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
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Bytes Format Units Label Explanations
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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)
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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
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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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)
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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.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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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
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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)
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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)astro.iag.usp.br
(End) Patricia Vannier, Francois Ochsenbein [CDS] 08-Apr-2010