Ground-based proper motion of 12 nearby GC : J/MNRAS/471/1446

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Authors : Narloch W. orcid , Kaluzny J., Poleski R. (hide) , Kaluzny J., Poleski R. et..al

VizieR DOI : 10.26093/cds/vizier.74711446
Bibcode : 2017MNRAS.471.1446N (ADS) (Simbad) (Objects)
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CDS Keywords : Clusters, globular; Proper motions
UAT : Globular star clusters, Proper motions

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Inserted into VizieR : 03-Jul-2020
Last modification : 17-Aug-2024

A ground-based proper motion study of 12 nearby globular clusters. (2017)

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 ...(more)
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Monthly Notices policies
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 14.8x22.8arcmin^2^ and a scale of 0.435arcsec/pix during years 1997 and 2010 and E2V CCD231-84 with a field of view of 29.7x29.8arcmin^2^ and the same pixel scale in 2015. 


                


                

                    

                


                

                    

                


                

                    
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