J/MNRAS/471/1446 Ground-based proper motion of 12 nearby GC (Narloch+, 2017)
A ground-based proper motion study of 12 nearby globular clusters.
Narloch W., Kaluzny J., Poleski R., Rozyczka M., Pych W., Thompson I.B.
<Mon. Not. R. Astron. Soc., 471, 1446-1467 (2017)>
=2017MNRAS.471.1446N 2017MNRAS.471.1446N (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, globular ; Proper motions
Keywords: astrometry; blue stragglers - globular clusters: individual: M12 -
globular clusters: individual: NGC 6362 -
globular clusters: individual: M4 -
globular clusters: individual: M55 -
globular clusters: individual: M22 -
globular clusters: individual: NGC 6752 -
globular clusters: individual: NGC 3201 -
globular clusters: individual: M30 -
globular clusters: individual: M10 -
globular clusters: individual: NGC 362 -
globular clusters: individual: M5 -
globular clusters: individual: 47 Tucanae
Abstract:
We derive relative proper motions of stars in the fields of the
globular clusters M12, NGC 6362, M4, M55, M22, NGC 6752, NGC 3201,
M30, M10, NGC 362, M5 and 47 Tucanae based on data collected between
1997 and 2015 with the 1-m Swope telescope of Las Campanas
Observatory. We determine membership class and membership probability
for over 446000 objects, and show that these are efficient methods
for separating field stars from members of the cluster. In particular,
membership probabilities of variable stars and blue/yellow/red
stragglers are determined. Finally, we find absolute proper motions
for six globular clusters from our sample: M55, NGC 3201, M10, NGC
362, M5 and 47 Tuc. An electronic catalogue of the derived proper
motions is publicly available via the internet.
Description:
The images analysed in this paper were collected within the CASE
project between the years 1997 and 2015. Observations in V and B
filters were obtained using the 1-m Swope telescope located at Las
Campanas Observatory in Chile. Two CCD cameras were used: SITe#3 with
a field of view of 14.8x22.8arcmin2 and a scale of 0.435arcsec/pix
during years 1997 and 2010 and E2V CCD231-84 with a field of view of
29.7x29.8arcmin2 and the same pixel scale in 2015.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
47tuce.dat 138 42506 47 Tuc E proper motion catalog
47tucw.dat 138 43161 47 Tuc W proper motion catalog
m4.dat 138 24304 M 4 proper motion catalog
m5.dat 138 37042 M 5 proper motion catalog
m10.dat 138 27895 M 10 proper motion catalog
m12.dat 138 19120 M 12 proper motion catalog
m22.dat 138 87030 M 22 proper motion catalog
m30.dat 138 12638 M 30 proper motion catalog
m55.dat 138 39566 M 55 proper motion catalog
ngc362.dat 138 23879 NGC 362 proper motion catalog
ngc3201.dat 138 32795 NGC 3201 proper motion catalog
ngc6362.dat 138 21851 NGC 6362 proper motion catalog
ngc6752.dat 138 37454 NGC 6752 proper motion catalog
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Byte-by-byte Description of file: *.dat
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Bytes Format Units Label Explanations
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1- 7 I7 --- ID Star identification number
9- 19 F11.7 deg RAdeg Right ascension (J2000)
21- 31 F11.7 deg DEdeg Declination (J2000)
33- 40 F8.3 pix Xpos X position
42- 49 F8.3 pix Ypos Y position
51- 56 F6.3 mag Vmag V magnitude (standard system)
59- 63 F5.3 mag e_Vmag Error of Vmag
65- 70 F6.3 mag B-V ?=9.999 B-V colour index
(9.999 when B magnitude is unknown)
73- 77 F5.3 mag e_B-V ?=9.999 Error of B-V
79- 90 F12.6 mas/yr pmRA* Proper motion along RA, mRA*cosDE
94-103 F10.6 mas/yr e_pmRA* Error of pmRA*cosDE
106-116 F11.6 mas/yr pmDE Proper motion along DE
120-129 F10.6 mas/yr e_pmDE Error of pmDE
131 I1 --- MemB [0/2] Cluster membership (1)
133-138 F6.2 % Pmemb Membership probability
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Note (1): Cluster membership as follows:
0 = field star
1 = possible member
2 = likely member
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History:
Copied at https://case.camk.edu.pl/results/GC-C40-PM-CATALOGS/index.html
(End) Patricia Vannier [CDS] 18-May-2020